6.
When an oxygen atom forms its most common ion, it
a) gains one electron.
b) gains two electrons.
c) loses one electron.
d) loses two electrons.

Answers

Answer 1

Answer:

gains two electron!

Explanation:

When a barium atom forms its most common ion, it gains two electron!


Related Questions

Which is responsible for carrying the signals for vision from the eye to the brain? retina. rods and cones. optic nerve. cornea​

Answers

Answer:

Optic Nerve

Explanation:

Hello There!!

The answer is C. Optic nerve.

Because, The eye works like a camera. The cells in the retina absorb and convert the light to electrochemical impulses which are transferred along the optic nerve to the brain. The brain is instrumental in helping us see as it translates the image into something we can understand.

P.S Tell me if this is wrong...

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#\(Be\) \(Bold\)

# \(Always\) \(Brainly!\)

\(_{Loserbrazts}\)

The formula for propane is c3h8 what would you need to know to answer how much energy is required to combust propane vs gasoline

Answers

To answer how much energy is required to combust propane vs gasoline, you would need to know the balanced chemical equations for the combustion of propane and gasoline. The balanced equations would provide the stoichiometric coefficients, which indicate the ratios of the reactants and products involved in the combustion reactions.

For propane combustion, the balanced equation is:

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

This equation shows that one molecule of propane (C₃H₈) reacts with five molecules of oxygen (O₂) to produce three molecules of carbon dioxide (CO₂) and four molecules of water (H₂O).

For gasoline, the composition can vary, and the exact balanced equation would depend on the specific hydrocarbon components present in the gasoline.

Once you have the balanced equations, you would also need to know the standard enthalpy of formation (ΔH°f) values for the reactants and products involved in the combustion reactions. These values represent the change in enthalpy (energy) during the formation of one mole of a substance from its constituent elements, at standard conditions.

With the balanced equations and the ΔH°f values, you can apply the principles of thermochemistry and use the Hess's Law to calculate the energy released during the combustion reactions of propane and gasoline. The difference in energy released would indicate the difference in energy required to combust propane vs gasoline.

If kb for nx3 is 2.5×10−6, what is the poh of a 0.175 m aqueous solution of nx3? express your answer numerically

Answers

Answer:

pOH = 3.18

Explanation:

The equilibrium of a weak base as NX3 is:

NX3(aq) + H2O(l) ⇄ HNX3⁺(aq) + OH-(aq)

Where the equilibrium constant, Kb, is:

Kb = 2.5x10⁻⁶ = [HNX3⁺] [OH-] / [NX3]

As both HNX3⁺ and OH- ions comes from the same equilibrium, their concentrations are the same, that is:

[HNX3⁺] = X

[OH-] = X

And: [NX3] = 0.175M:

2.5x10⁻⁶ = [X] [X] / [0.175M]

4.375x10⁻⁷ = X²

X = 6.61x10⁻⁴M = [OH-]

As pOH = -log [OH-]

pOH = 3.18

The molar mass of ammonium acetate is 77.083 g/mol. A student uses 0.100 mol of ammonium acetate in a chemical reaction. The
student claims that the reaction uses (0.100 mol) (77.083 g/mol) = 7.71 g of ammonium acetate, which has
(7.71) (6.022 x 1023) = 4.64 x 1024 molecules.
In one to two sentences, explain the mistake that the student made and determine the correct number of molecules of ammonium
acetate used in the reaction.

Answers

The student's claim of 4.64 × 10^24 molecules is incorrect, and the correct number of molecules of ammonium acetate used in the reaction is 6.022 × 10^22 molecules.

The mistake the student made is assuming that the molar mass of ammonium acetate directly corresponds to the number of molecules. However, the molar mass of a substance represents the mass of one mole of that substance, not the number of molecules.

To determine the correct number of molecules of ammonium acetate used in the reaction, we need to use Avogadro's number, which relates the number of particles (atoms, molecules, etc.) in one mole of a substance.

Avogadro's number is approximately 6.022 × 10^23 particles/mol. Given that the student used 0.100 mol of ammonium acetate, we can calculate the correct number of molecules by multiplying the number of moles by Avogadro's number:

Number of molecules = (0.100 mol) × (6.022 × 10^23 molecules/mol)

Performing the calculation, we find that the correct number of molecules of ammonium acetate used in the reaction is 6.022 × 10^22 molecules.

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A gas with pressure of 5.0 atm is compressed at constant temperature from 10.0 l to 2.0 l. what is the pressure of the gas after it is compressed?

Answers

A gas with pressure of 5.0 atm is compressed at constant temperature from 10.0 L to 2.0 L then the pressure of the gas after it is compressed is 25 atm .

Calculation ,

Formula used :  \(P_{1} V_{1} =P_{2} V_2}\)

Given initial pressure \(P_{1}\)  = 5 atm

given initial volume \(V_{1}\) = 10 L

final volume \(V_2}\) = 2 L

final pressure \(P_{2}\)  = ?

Put the value of  initial pressure , initial volume and final volume in equation ( i ) we get the pressure of the gas after it is compressed .

5 atm × 10 L =  \(P_{2}\) × 2 L

\(P_{2}\)= 5 atm ×10 L / 2 L = 25 atm

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Which statement describes a process involved in the evolution of Earth’s early atmosphere?
A.
Cyanobacteria transformed carbon dioxide in the atmosphere into oxygen during photosynthesis.
B.
Heavier gases escaped through Earth’s atmosphere, leaving only lighter gases such as oxygen behind.
C.
Volcanic eruptions produced enough oxygen to create Earth’s atmosphere.
D.
The amount of oxygen in the atmosphere declined due to respiration, or breathing.A sea breeze is a wind that blows from the sea toward land. Which statement best explains how air pressure influences sea breezes?
A.
Wind always blows from the sea toward land, regardless of differences in air pressure.
B.
The air above the land has a lower pressure than the air above the sea.
C.
The air above the sea has a lower pressure than the air above the land.
D.
The sea and the land are at equivalent air pressures, so waves cause the wind to move toward the land.

Answers

Answer:

D

Explanation:

D. The sea and land are at the equivalent etc ..

What is the volume of 5.07 grams of copper? The density of copper is 8.96g/mL

Answers

Explanation

Given:

Mass of copper = 5.07 g

Density of copper = 8.96 g/mL = 8960 g/L

Requested: Volume of copper

Solution

p = m/V where p is the density, m is the mass and V is the volume

m = p x V

V = m/p

V = 5.07 g/8.96 g/mL

V = 0.566 mL

Answer

Volume of copper = 0.566 mL

A certain gas has a volume of 195 mL at 20°C and 1.00 atm. What is the its volume in mL at60°C and 600 mm Hg?

Answers

To solve this question we will assume that the moles of gas do not change and that the gas behaves like an ideal gas.

For an ideal gas we have that its behavior will be according to the following equation:

\(PV=nRT\)

Where,

P is the pressure of the gas, in atm

V is the volume of the gas, in liters

n are the moles of the gas

T is the temperature of the gas, in Kelvin

R is a constant, 0.08206 atm.L/mol.K

We have for this gas two states, an initial state (1) and a final state (2), so for each state we can apply the ideal gas law, we will have:

Initial state:

\(\begin{gathered} P_1V_1=nRT_1 \\ nR=\frac{P_1V_1}{T_1} \end{gathered}\)

Final state:

\(\begin{gathered} P_2V_2=nR_T_2 \\ nR=\frac{P_2V_2}{T_2} \end{gathered}\)

Since nR are constants, we can equate both equations:

\(\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}\)

For each state the conditions of pressure, volume and temperature will be:

P1=1.00atm

V1=195mL = 0.195L

T1=20°c = 293.15K

P2= 600mmHg=0.79atm

T2=60°C=333.15K

V2=Unknown

We clear V2 and replace the known data:

\(V_2=\frac{P_1V_1}{T_1}\times\frac{T_2}{P_2}\)\(\begin{gathered} V_2=\frac{1atm\times0.195L}{293.15K}\times\frac{333.15K}{0.79atm} \\ V_2=\frac{1\times0.195\times333.15}{293.15\times0.79}L \\ V_2=0.280L=280mL \end{gathered}\)

Answer: The final volume of the gas will be 280mL

In Rutherford experiment some alpha particles fired at a gold foil bounced backward as a result of ... A.reflection from the surfaces of gold atoms B.electrostatic repulsion by gold nuclei C.electrostatic repulsion by electronsD.all of the aboveE.none of the above

Answers

Answer:

B.electrostatic repulsion by gold nuclei

Explanation:

According to Rutherford's experiment, a thin gold foil was bombarded with alpha particles. Some of the particles passed through the foil undeviated, some were scattered through large angles while some bounced backwards.

It follows that the particles that bounced backwards must have encountered a massive particle of like charge.

The atom is composed of a nucleus which contains positively charged particles. Some of the alpha particles which are positively charged particles bounced back when they encountered the positively charged particles in the nucleus.

Answer: The correct option is B (electrostatic repulsion by gold nuclei).

Explanation:

In the Rutherford's experiment, he used positively charged particles called alpha particles to bombard an atom in order to find out what is inside the atom. Together with two other scientists, Geiger and Marsden, they used a narrow beam of alpha particles emitted from a radioactive source to bombard a thin gold foil. The scattering of the particles from the gold foil was detected by a movable zinc sulphide screen which could be rotated to various positions around the foil.

Each time an alpha particle hit the screen, a visible flash of light or scintillation was produced. This was observed by a microscope attached to the screen. It was then observed that some of the particles followed a straight path through the gold foil while a few where scattered in a backward direction. This was as a result of electrostatic repulsion by gold nuclei which occurs due to the greater part of the mass of the atom was concentrated in a minute nucleus with positive charge.

which product of petroleum is normally used as fuel in cars and light vehicles​

Answers

Answer:

mostly gasoline in cars nowadays

Gasoline is the product used as fuel.

Aluminum has the electronic configuration 2,8,3. How many valence
electrons are in the aluminum atom?​

Answers

Answer:

3 valence electrons

Explanation:

Because aluminum has three, that means three fluorines can bond. The make the formula AlF3, also known as aluminum trifluoride. Each of the fluorine atoms gets an electron to fill their shell, and the aluminum loses three, giving it a filled shell too (remember, aluminum has three extra electrons).

If 30 g of a drug is dissolved in 150 mL of a solvent having a specific gravity of 1.40, what is the percentage strength (%w/w) of the drug solution?

Answers

the percentage strength (%w/w) of the drug solution is 12.5%.To determine the percentage strength (%w/w) of the drug solution, we need to first calculate the weight of the solvent in the solution. We can do this using the specific gravity of the solvent, which tells us how much denser the solvent is compared to water.

To determine the percentage strength (%w/w) of the drug solution, we need to first calculate the weight of the solvent in the solution. We can do this using the specific gravity of the solvent, which tells us how much denser the solvent is compared to water.

Density of water = 1 g/mL
Density of solvent = 1.40 g/mL

Therefore, the weight of the solvent in 150 mL of the solution is:

Weight of solvent = Volume x Density = 150 mL x 1.40 g/mL = 210 g

Now, to find the percentage strength (%w/w) of the drug solution, we need to divide the weight of the drug by the total weight of the solution (drug + solvent) and multiply by 100.

Weight of drug = 30 g

Total weight of solution = 30 g + 210 g = 240 g

%w/w of drug solution = (Weight of drug / Total weight of solution) x 100
%w/w of drug solution = (30 g / 240 g) x 100
%w/w of drug solution = 12.5%

Therefore, the percentage strength (%w/w) of the drug solution is 12.5%.
To determine the percentage strength (%w/w) of the drug solution with 30 g of drug dissolved in 150 mL of a solvent with a specific gravity of 1.40, follow these steps:

1. Calculate the mass of the solvent:
Mass of solvent = Volume of solvent × Specific gravity
Mass of solvent = 150 mL × 1.40 g/mL = 210 g

2. Calculate the total mass of the solution:
Total mass = Mass of drug + Mass of solvent
Total mass = 30 g (drug) + 210 g (solvent) = 240 g

3. Calculate the percentage strength (%w/w):
Percentage strength = (Mass of drug / Total mass) × 100
Percentage strength = (30 g / 240 g) × 100 = 12.5 %

Therefore, the percentage strength (%w/w) of the drug solution is 12.5%.

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How much energy is needed to convert 15.0 g of ice at -5.0 oC into water at 50.0 oC?

Answers

m=15g=0.015kg∆T=50-(-5)=55°C=328Kc=4184J/kg°K

Using thermodynamics

\(\\ \sf\longmapsto Q=mc∆T\)

\(\\ \sf\longmapsto Q=0.015(328)(4184)\)

\(\\ \sf\longmapsto Q=20585.28J\)

select the correct hybridization for the central atom based on the electron geometry i−3.

Answers

The correct hybridization for the central atom based on the electron geometry i−3 is sp³d. The electron geometry of i−3 can be determined using VSEPR theory, which predicts that central atom will have a trigonal bipyramidal electron geometry due to the presence of three lone pairs and two bonding pairs around central atom.

To determine the hybridization of the central atom, we must consider the number of orbitals that are involved in bonding. In a trigonal bipyramidal electron geometry, there are five orbitals that can be involved in bonding, which are the three axial orbitals and the two equatorial orbitals.

Iodine has seven valence electrons, and in i−3, three electrons are added to form the negative charge, bringing the total number of electrons to 10. To form the bonds in i−3, iodine will hybridize its valence orbitals, meaning that it will mix its s, p, and d orbitals to form five sp3d hybrid orbitals, each with one electron.

Therefore, the correct hybridization for the central atom based on the electron geometry i−3 is sp³d.

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If the mass ratio of K to F in a compound is 2.06:1, how many grams of F are needed to react with 101g of K?

Answers

Mass of F to react with 101 g of K = 49.03 g

Further explanation

Proust stated the Comparative Law that compounds are formed from elements with the same Mass Comparison so that the compound has a fixed composition of elements

In the same compound, although from different sources and formed by different processes, it will still have the same composition/comparison

With this law, we can calculate how many grams an element is needed to make a compound with a certain mass, as desired

The mass of compounding compounds can also be calculated.

For example, the mass ratio of oxygen (O) and hydrogen (H) elements in H₂O remains at 8: 1. So if you know the amount of mass of oxygen you can know the amount of hydrogen and water mass.

The mass ratio of K to F in a compound is 2.06:1, so the mass of F to react with 101 g of K :

\(\tt =\dfrac{1}{2.06}\times 101\\\\=\boxed{\bold{49.03~g}}\)

If you have a mole of boron and a mole of carbon would they have the same number of
atoms in each mole? Please help ❤️

Answers

Answer:. that contains the same number of entities as there are atoms in 12 g of carbon-12. ... the same as the mass of one mole of the compound in grams. • Skill 3-1 Calculate the ... Molar mass has units of grams per mole (g/mol). Concept 3. ... of moles to mass: •We can do the reverse with 1/M, and convert any mass in grams to.

Explanation:

The number of atoms in a mole of boron and carbon is required.

A mole of carbon and a mole of boron have the same number of atoms.

The unit of amount of substance is called mole.

\(1\ \text{mole}=6.022\times 10^{23}\ \text{atoms, molecules, ions, or electrons}\)

So, 1 mole of any element, whether it be carbon or boron has the same number of atoms which is \(6.022\times 10^{23}\).

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How does real-world military CIS compare to its portrayal on television? You can either refer to the agent speaking about it in the video or draw your own conclusions from the video against things you’ve seen on television.

Answers

Answer: The video compared to things i've seen on TV seems much more stressful. On TV, they always seem pretty confident in what they are doing, but it never shows the training and how much work you have to go through to get to the end result. They always just take their time walking around and do lots of talking in TV shows when that's not the case at all in this video. It's get in and get out with as much evidence as possible. The TV show always has a successful ending when the hour ends, which is not the case in real life.

What is the melting point of water in kelvin?

Answers

Answer: 273.1
Explniation: my big brain

why does hydrogen emit different wavelengths of light than mercury

Answers

When an atom is heated or energized, it emits light of different wavelengths. The wavelengths of light emitted by an atom are determined by the energy levels of its electrons. Hydrogen and mercury both emit light when they are excited, but they emit different wavelengths of light because they have different electron configurations.

Hydrogen is the lightest element, with only one electron in its outermost shell, which is at a relatively low energy level. When hydrogen is excited, it emits light of specific wavelengths that are determined by the energy differences between its electron levels. These wavelengths fall in the visible spectrum and produce a series of spectral lines known as the Balmer series. The Balmer series is named after Johann Balmer, who discovered it in 1885.Mercury, on the other hand, has 80 electrons in its outermost shell and a more complex electron configuration. When mercury is excited, it emits light of different wavelengths than hydrogen because it has a different set of electron energy levels. Mercury emits light of a wider range of wavelengths, including ultraviolet and visible light, which produces a continuous spectrum rather than spectral lines. This is because mercury has many more electrons and energy levels than hydrogen does. The difference in electron configurations leads to the difference in wavelengths of light emitted by hydrogen and mercury. While hydrogen emits light of specific wavelengths that are determined by the energy differences between its electron levels, mercury emits light of a wider range of wavelengths because it has a more complex electron configuration.

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what is the mass of 55mL of glycerin if it’s density is 1.26 g/mL

Answers

Answer:

69.3 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

volume = 55 mL

density = 1.26 g/mL

mass = 1.26 × 55 = 69.3 g

We have the final answer as

69.3 g

Hope this helps you

Can someone answer this question really quick
Where do igneous rocks form?

Select all that apply.

Responses

A. Igneous rocks form on Earth’s surface where magma reaches the surface.Igneous rocks form on Earth’s surface where magma reaches the surface.

B. Igneous rocks form underneath Earth’s surface where magma cools down within the crust.Igneous rocks form underneath Earth’s surface where magma cools down within the crust.

C. Igneous rocks form within Earth’s mantle where magma is typically found.Igneous rocks form within Earth’s mantle where magma is typically found.

D. Igneous rocks form in Earth’s inner core where magma solidifies under heat and pressure.

Answers

The correct responses for where igneous rocks form are B. Igneous rocks form underneath Earth’s surface where magma cools down within the crust, and C.Option b is correct.

Igneous rocks form within Earth’s mantle where magma is typically found.Option A, "Igneous rocks form on Earth’s surface where magma reaches the surface," is incorrect. Rocks formed from magma that reaches the surface are called extrusive or volcanic igneous rocks.

Option D, "Igneous rocks form in Earth’s inner core where magma solidifies under heat and pressure," is also incorrect. The Earth's inner core is composed mainly of solid iron and nickel, and it is not the location where igneous rocks form.

Igneous rocks are formed when molten magma cools and solidifies. This process primarily occurs within the Earth's crust and mantle. Intrusive or plutonic igneous rocks are formed when magma cools slowly beneath the Earth's surface, while extrusive or volcanic igneous rocks are formed when magma reaches the surface and cools quickly.Option b is correct.

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if one draws several lewis structure of a molecule, connected by double arrow symbols (i.e, ↔), this implies that

Answers

Drawing several Lewis structures of a molecule connected by double arrow symbols (↔) implies that the molecule exhibits resonance. Resonance occurs when multiple Lewis structures can be written for a molecule, representing different arrangements of electrons. The actual structure of the molecule is a hybrid or combination of these resonance structures, and the double arrow signifies the delocalization or sharing of electrons between different atoms or regions within the molecule.

Resonance is a concept used in chemistry to describe situations where multiple Lewis structures can be drawn for a molecule, but none of the individual structures accurately represent the molecule's true electronic structure. Instead, the actual structure is a hybrid or combination of these resonance structures.

When drawing resonance structures, double arrow symbols (↔) are used to connect the different structures. The double arrow indicates that the molecule can exist in all of the resonance forms simultaneously, with electron delocalization or sharing occurring between different atoms or regions within the molecule.

The presence of resonance is often observed in molecules with conjugated systems, such as benzene or carbonate ions. The resonance stabilization provided by electron delocalization contributes to the stability and unique properties of these molecules.

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Scientific predictions can best be described as: a Problems you expect to identify b Questions you expect to ask c Experiments you expect to run d Evidence you expect to find

Answers

Answer:

Explanation:a

Scientific predictions are best described as consistent data that are presented in the form of if and then. It is a solution to the problem that may be identified. Thus, option a is correct.

What is scientific prediction?

Scientific prediction is a statement that describes the events of the future that are not always correct or incorrect. In scientific research, the experiment is conducted based on the hypothesis to draw conclusions and results that are expected.

The expected results are said to be scientific predictions when they are represented in the form of "if and then" before the analysis of the experimental method and its result are done. It is an account of the events that may possibly take place under specific conditions.

Therefore, option A. scientific prediction is an expected problem.

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If three, different samples of a particular compound are found to have exactly the same elemental y mass, what does that tell us about;

Answers

If three different samples of a particular compound are found to have exactly the same elemental mass, it tells us that the compound is composed of the same elements in the same proportions.

Since the elemental mass is the same in all three samples, it suggests that the compound is made up of the same elements in the same proportions. This means that the ratio of the elements in the compound is consistent across the three samples.

In conclusion, if three different samples of a compound have exactly the same elemental mass, it indicates that the compound is composed of the same elements in the same proportions. This information can be helpful in identifying the compound and understanding its chemical properties.

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NEED HELP!!! PLEASE, AND THANK YOU!!! ^^ <3
A patient is in the emergency room for the fifth time in one month. He has rosy cheeks and feels warm. The patient weighs 187 pounds, and his heart rate is 72 beats per minute. Which is qualitative data about the patient?
A- heart rate of 72 beats per minute
B- weight of 187 pounds
C- rosy cheeks and feels warm
D- fifth visit to the emergency room

Answers

Answer:

B

Explanation:

Determine how many grams of precipitate (solid) will form when 621 g of magnesium
chloride react with excess silver nitrate in the reaction
2 AgNO3(aq) + MgCl(aq) - 2 AgCl(s) + Mg(NO3)2(aq)
NB: Convert to moles, then use your preferred method to get moles AgCl produced
from the given moles of MgCl, then convert moles AgCl produced to grams AgCI.

Answers

Answer:

2,981g

Explanation:

Firstly, we need to find the number of moles of MgCl that we have by using the formula: mass = No. Moles x Molar Mass, which we can rearrange so that we are solving for no. moles:

No. Moles = mass / Molar Mass

We are given a mass of 621g, and we can calculate the molar mass of MgCl by adding the two molar masses together: 24.31+35.45 = 59.76

Now we can calculate number of moles by substituting these values into the formula:

n = 621 / 59.76

No. moles = 10.4

Now we can use the co-efficients in the formula to tell us how many moles of AgCl will be formed. The coefficient of MgCl is 1, and the coefficient of AgCl is 2. This means that every 1 mol of MgCl will form 2 moles of AgCl. So, to find the no. moles of AgCl, we multiply our no. moles by 2:

10.4 x 2 = 20.8 moles

Finally we convert this back into mass by multiplying the no. moles by the Molar mass of AgCl:

m = 20.8 x (107.87+35.45)

m = 2,981g

Consider the reaction below.
H₂PO4+H₂O → H3O+ + HPO4²-
Which of the following is a base-conjugate acid pair?
OH₂O and H3O+
OH₂O and H₂PO4
OH₂PO4 and HPO4²-
OH₂PO4 and H3O+

Answers

The strong acid and strong base has high rate constant of dessociation. Weak acid and base are the one whose rate constant for the dissociation is low, they do not dissociate readily in water. Therefore, the correct option is option A.

What are acid and base?

Acid is a solution which releases H⁺ hydrogen ion when dissolved in water. Base are the solution which releases hydroxide ion OH⁻ ion when dissolved in water.

The balanced equation is

H₂PO\(_4\)+H₂O → H\(_3\)O+ + HPO\(_4\)²-

H₂PO\(_4\) is a acid and if we remove one hydrogen ion from this then we get an anion called conjugate base. The pair is called acid base conjugate pair. H₂O is acid over here and if we give one hydrogen ion to this then the cation that we will get is called conjugate acid. The pair is called base conjugate acid pair.

Therefore, the correct option is option A.

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Why is molten salt a good conductor of electricity

Answers

Answer:

some of the salt molecules are dissociated into ions, which allows the ions to conduct electricity.

Explanation:

hope it helps

For strong electrolytes, i = number of per mole of solute dissolved. CaCl dissolves yielding three ions, one Ca ion and two Clions, thus i = (NH. ),P dissolves yielding four ions, three NH' ions and one Pion, thus i = "Colligative Properties Study Guide" by Montgomery College is licensed under CC BY 4. 0

Answers

The statement you provided refers to the determination of the van't Hoff factor (i) for strong electrolytes. The van't Hoff factor represents the number of ions produced per mole of solute dissolved in a solution.

For example, when calcium chloride (CaCl2) dissolves, it dissociates into three ions: one Ca2+ ion and two Cl- ions. Therefore, the van't Hoff factor (i) for CaCl2 is 3 because it produces three ions per mole of solute dissolved.

Similarly, when ammonium phosphate (NH4)3PO4 dissolves, it dissociates into four ions: three NH4+ ions and one PO43- ion. Thus, the van't Hoff factor (i) for (NH4)3PO4 is 4 because it yields four ions per mole of solute dissolved.

The van't Hoff factor is essential in various calculations related to colligative properties, such as boiling point elevation and freezing point depression, where it is used to account for the number of particles in solution.

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QUICK PLEASE ANSWER THIS QUICK 70 POINTS RIGHT ANSWERS ONLY!! :)

QUICK PLEASE ANSWER THIS QUICK 70 POINTS RIGHT ANSWERS ONLY!! :)

Answers

Explanation:

To find the freezing point of the solution using the freezing point depression (ATf) and the freezing point of water, we can use the equation:

FPsolution = FPwater - ATf

where FPwater is the freezing point of pure water (0.00 °C). We know that ATf for this solution is 5.58 °C, as found in the previous step. Therefore:

FPsolution = 0.00 °C - 5.58 °C

FPsolution = -5.58 °C

However, a freezing point below zero degrees Celsius is not physically possible, since water freezes at 0.00 °C. Therefore, the solution would not actually freeze at this temperature, and we need to round the answer to zero °C:

FPsolution ≈ 0.00 °C

Therefore, the freezing point of the solution is around 0.00 °C, or the solution will not freeze at this temperature.

Other Questions
what would we expect to happen to the price and quantity of apple iphones if the price of samsung smartphones increases and apple develops a new technology that makes its iphone production process more efficient Imagine that researchers find some memories are lost very quickly from memory, while other memories last much longer. This evidence would create Chromosomes line up in the center of the cell during which phase? * rb is a tumor suppressor protein that acts by inhibiting phosphorylation of cdk. Would a plant survive without the xylem cell? What is a difference between the two CRISPR-Cas9 editing mechanisms: homology-directed repair and nonhomologous end joining This is a subjective question, hence you have to write your answer in the Text-Field given below. A given graph of 7 nodes, has degrees [4,4,4,3,5,7,2}, is this degree set feasible, if yes, then give us a graph, and if no, give us a reason. Marks] Which of the following is not an example of the racism that Jackie faced as an African American?Major League Baseball had an official ban on African American players.Many African American baseball players played in the Negro League.Black families could not eat at many restaurants and could only use the public pool on certain days.Some Major League teams cancelled games rather than play against Jackie's team.The United States Army was segregated.Jackie was taunted and threatened by fans and other players. Which of these is equivalent to 1 over x to the power of 5 ? 1 fifth x negative x to the power of 5 x to the power of 5 x to the power of negative 5 end exponent What is the acceleration of a baseball when it momentarily stops at its maximum height after being tossed directly upward? 9.8 m/s 2upward 9.8 m/s 2downward You are supposed to write an SRS document of the system scenario given in the file named "Smart health system". In the file, the information about the system and its module which are to be made are discussed. You are supposed to make an SRS document of that system by writing only the first three sections of the SRS document. If A=X X is a prime number between 23 and 29, check whether A is an empty set or not A pyramid with a slant height 4.6 in whose triangular base measures 8 in on each side.Each altitude of the base measures of 6.9 in an unresponsive patient is bleeding severely from an open wound to her head. initial efforts to stop the bleeding have failed. vital signs are: bp 60/40, p 122, r 16. you should Has there been greater progress in a politician or economic reform in China 3. Circuit A has twice theresistance of circuit B. Thevoltage is the same in eachcircuit. Which circuit has thehigher current? What is the solution to the following system x+y+z=6 and x-y+z=8 and x+y-z=0 According to Piaget, the two processes involved in adaptation are trying to understand something by fitting it into what we already know, and if the data cannot fit into what we already know, we adjust our thinking to fit the new information.assimilation and equilibration.equilibration and organization.assimilation and accommodationSocial transmission and schema. Brant promised to repair Carolyn's car on Thursday. After picking up the necessary part at a junkyard, he discovered he could not do the job after all and that the junkyard would not buy back the part. Carolyn does not know about these developments. However, she thinks Brant will be finished with her car sometime today. What should Brant do Dr. Nachman and his colleagues collected rock pocket mice across 35 kilometers of the Arizona Sonoran Desert, which included both dark, rocky lava outcrops and light, rocky, granite areas. They recorded substrate color, and coat-color frequencies for each location. Each site was separated from any of the others by at least eight kilometers. The researchers trapped a total of 275 mice. Their data are summarized below (numbers have been slightly modified for the purposes of this worksheet). (numbers have been slightly modified for the purposes of this worksheet).Field Data SummaryCollecting Site Substrate Color Number of Mice Phenotype Light Dark1 Dark 22 3 192 Light 80 74 63 Light 22 19 34 Dark 28 3 255 Light 58 25 336 Dark 65 9 561. Calculate the overall frequencies of light-colored mice and dark-colored mice caught on light-colored substrates. 2. Calculate the overall frequencies of light-colored mice and dark-colored mice caught on dark-colored substrates. 3.Using the Hardy-Weinberg equation and data from the table above, determine the frequency of the three genotypes on the light, rocky, granite substrate. 4. Using the Hardy-Weinberg equation and data from the table above, determine the frequency of the three genotypes on the dark, rocky lava substrate. 5. Which fur color seems to have the greatest overall selective advantage? 6.What environmental change gave a selective advantage for one coat color over another?7. In a separate study, 76 rock pocket mice were collected from four different, widely separated areas of dark lava rock. One collecting site was in Arizona. The other three were in New Mexico. Dr. Nachman and colleagues observed no significant differences in the color of the rocks in the four locations sampled. However, the dark-colored mice from the three New Mexico locations were slightly darker than the dark-colored mice from the Arizona population. The entire Mc1r gene was sequenced in all 76 of the mice collected. The mutations responsible for the dark fur color in the Arizona mice were absent from the three different populations of New Mexico mice. No Mc1r mutations were associated with dark fur color in the New Mexico populations. These findings suggest that adaptive dark coloration has occurred at least twice in the rock pocket mouse and that these similar phenotypic changes have different genetic bases. How does this study support the concept that natural selection is not random?8. To determine if the rock pocket mouse population is evolving, explain why it is necessary to collect fur color frequency data over a period of many years.