Potential Molecular TheoryThere are 500 grams of Kl in a volumetric flask. It is dissolved in 1 liter of water. What is the molarity?3.141 M3.012 M0.500 M500.000 M20A precipitate is formed when two solutions are mixed. This would only occur if

Answer:sunny days

Explanation:meow

Answer:

This is condensation.

Explanation:

The process of water vapour turning back into liquid water.

Answer:be careful and relax

Explanation:

Answer:

Hahaha be careful and relax

Answer:

Its B

Explanation:

Answer:

I think the answer is polar covalent as there will be an unequal amount of electrons shared/available. An ionic bond will not take place because the valance shell of the larger atom contains more than 1 electron.

Based on the indicator chart, the pH indicator that would be the best one to use would be Thymol Blue.

The color change would be from light blue to yellow to orange.

Thymol blue would be best because it would show you where your starting point is and then when you reach the desired pH value of 3. 0. Looking at the indicator chart, Thymol blue has a color of light blue between 8. 0 and 9. 0 so you will know you are at 8. 0 when the reaction starts.

As you add more acid, the color would move to yellow to let you know that it is getting more acidic. Once it reaches orange, the titration should stop.

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answer should be 1.4 cm³

1 L = 10 and so

dL = 100 and then

cL = 1,000

mL = 0.001 m³

1 m³ = 1,000

dm³ = 1,000,000

cm³ = 1,000,000,000

mm³ = 1,000 L

So, 1 mL = 1 cm³ = 0.001 L = 0.1 cL

1,400 mL = 1,400 cm³ = 1.4 L = 140 cL

Answer:

1.4 cm^3

Explanation:

Exoplanets are usually gigantic, fireballs that are close to the sun. Therefore, the correct option is option B.

Any planet outside of our solar system is an exoplanet. The majority of exoplanets orbit other stars, while rogue planets—free-floating exoplanets that are unattached to any star—orbit the galactic centre.

The majority of the exoplanets found so far are in the Milky Way, which is a rather tiny area of our galaxy. The Kepler Space Telescope of NASA has revealed that the galaxy has more planets than stars. Exoplanets are usually gigantic, fireballs that are close to the sun.

Therefore, the correct option is option B.

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Answer:

its answer is (Acetylene)

Conversion factor used to convert volume is 1L = 1000 mL.

15.43L = 15430mL

The same attribute is expressed using a unit conversion but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometers, feet, or any other measurement unit instead of miles. Measurements are frequently offered in one set of units, like feet, but are required in another set, like chains. A conversion factor is a mathematical equation that facilitates an equal exchange of feet for chains.

A conversion factor is a number that is used to multiply or divide one set of units into another. If a conversion is required, it must be done using the correct conversion factor to get an identical value.

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Answer:

A small amount of chemical splashes in Frank's eye. What should happen next? Frank should go to the eyewash station while his lab partner tells the teacher what happened.

Explanation:

Brainlist

Answer:

Explanation:

The gravitational potential energy of a body can be found by using the formula

GPE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

GPE = 2 × 9.8 × 0.7

We have the final answer as

Hope this helps you

There are 15.4 equivalents of chloride ion present in the solution

We need to multiply the total number of moles of chloride ion in the solution by the number of equivalents.

The molar mass of NaCl is 58.44 g/mol, so 3.5 mol of NaCl contains :

3.5 mol NaCl x 2 mol Cl⁻/1 mol NaCl = 7 mol Cl⁻

Similarly, the molar mass of MgCl₂ is 95.21 g/mol, so 4.2 mol of MgCl₂ contains:

4.2 mol MgCl₂ x 2 mol Cl⁻/1 mol MgCl₂ = 8.4 mol Cl⁻

Therefore, the total number of moles of chloride ion in the solution is:

7 mol Cl⁻ + 8.4 mol Cl⁻ = 15.4 mol Cl⁻

By dividing the total number of moles by the number of equivalents per mole, we can finally determine how many equivalents of the chloride ion there are. There is one equivalent of the chloride ion per mole since it has a valency of -1.

15.4 mol Cl⁻ x 1 eq/mol = 15.4 eq

So there are 15.4 equivalents of chloride ion present in the solution.

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The equilibrium constant for the reaction is:

K subscript eq equals StartFraction StartBracket upper H subscript 2 EndBracket superscript 2 StartBracket upper O subscript 2 EndBracket over StartBracket upper H subscript 2 upper O EndBracket superscript 2 EndFraction.

The equilibrium constant (Kₑq) for a given reaction is simply defined as the ratio of the concentration of the products raised to their coefficient to the concentration of the reactants raised to their coefficient.

For example, the equilibrium constant Kₑq for the reaction below is given as

2A <=> B

Kₑq = [B]/[A]²

Kₑq = [H₂]²[O₂] / [H₂O]²

K subscript eq equals StartFraction StartBracket upper H subscript 2 EndBracket superscript 2 StartBracket upper O subscript 2 EndBracket over StartBracket upper H subscript 2 upper O EndBracket superscript 2 EndFraction.

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Answer:

The answer is D.

Explanation:

Got it right on edge!

According to the explanation given in the previous session, now we have three new ionic compounds:

1. Silver phosphide will have the chemical formula: Ag3P, 3 is subscript

2. Radium phosphate will have the chemical formula: Ra3(PO4)2, numbers 3, 4 and 2 are all subscripts

3. Gallium iodide will have the chemical formula: GaI3, 3 is subscript

The pressure inside the tire, converted to pascals, is approximately 8,555 N/m^2, or 8.56 × 10^3 Pa, using the appropriate number of significant figures.

To convert the pressure from pounds per square inch (psi) to pascals (Pa), we need to use the given conversion factors:

1 pound = 4.45 newtons

1 inch^2 = 6.45 centimeters^2 = (6.45/100)^2 square meters

First, let's convert psi to newtons per square inch (N/in^2):

28.0 psi * 4.45 N = 124.6 N/in^2

Now, let's convert newtons per square inch to pascals:

124.6 N/in^2 * ((6.45/100)^2) m^2 = 8,555.4125 N/m^2 (approximately)

To express the answer to the correct number of significant figures, we need to determine the number of significant figures in the given pressure value. Since the pressure is given as "28.0," it implies that there are three significant figures. Therefore, the pressure inside the tire, converted to pascals, is approximately 8,555 N/m^2, or 8.56 × 10^3 Pa, using the appropriate number of significant figures.

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The percent by mass of nitrogen in ammonia (NH3) is approximately 82.15%

Calculating the mass of nitrogen to the total mass of the compound and then expressing the result as a percentage will allow us to determine the percent by mass of nitrogen in NH3 (ammonia).

Ammonia's molecular structure, NH3, indicates that it is made up of one nitrogen atom (N) and three hydrogen atoms (H). We must take both the molar masses of nitrogen and ammonia into account when calculating the percent by mass of nitrogen.

Nitrogen's (N) molar mass is roughly 14.01 g/mol. The molar masses of nitrogen and hydrogen are added to determine the molar mass of ammonia (NH3). Since hydrogen's molar mass is around 1.01 g/mol, ammonia's molar mass is:

(3 mol H 1.01 g/mol) + (1 mol N 14.01 g/mol) = 17.03 g/mol = NH3.

Now, we can use the following formula to get the nitrogen content of ammonia in percent by mass:

(Mass of nitrogen / Mass of ammonia) / 100% is the percentage of nitrogen by mass.

Ammonia weighs 17.03 g/mol and contains 14.01 g/mol of nitrogen by mass. By entering these values, we obtain:

(14.01 g/mol / 17.03 g/mol) 100% 82.15 % of nitrogen by mass

Ammonia (NH3) has a nitrogen content that is roughly 82.15 percent by mass.

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Answer:

Answer:

B. It's dissociation is a reversible reaction

Explanation:

NH3 is a weak alkali that does not dissociate fully into its solution. Only parts of the ammonia takes part in the dissociation process.

NH3 + H20 —> NH4+ + OH-

This dissociation is reversible which means the reactants can be formed from the product gotten from the dissociation

It has a high pH due to its basic nature. It also has a Low concentration of H+ ions and not all the OH- ions are released.

Answer: For the given reaction \(Pb(NO_{3})_{2} + AlBr_{3}\) the products are \(PBr_{2} + Al(NO_{3})_{3}\).

Explanation:

A reaction in which two substances chemically combine together and results in the formation of a new substance is called a chemical reaction.

For example, \(3Pb(NO_{3})_{2} + 2AlBr_{3} \rightarrow 2Al(NO_{3})_{3} + 3PbBr_{2}\)

Products are the species that are written on the right side of an arrow in a chemical reaction equation.

Hence, we can conclude that for the given reaction \(Pb(NO_{3})_{2} + AlBr_{3}\) the products are \(PBr_{2} + Al(NO_{3})_{3}\).

A chemist determines that a substance is composed of 30.4% nitrogen by mass and 69.6% oxygen by mass. The molar mass of the compound is 230.5 g/mol, the molecular formula is NO₂.

We must compute the empirical formula in order to ascertain the compound's chemical composition.

If we have 100 grams of the compound.

This suggests we have:

30.4 g of nitrogen

69.6 g of oxygen

Now, we have to convert the mass of each element to moles.

The molar mass of nitrogen (N) = 14.01 g/mol

the molar mass of oxygen (O)  =  16.00 g/mol.

Number of moles of nitrogen (N):

2.17 mol

Number of moles of oxygen (O):

4.35 mol

The simplest whole-number ratio between the moles of nitrogen and oxygen must now be determined. To calculate the ratio, we divide both numbers by the smaller value.

Moles N / moles O = 2.17 mol / 2.17 mol = 1.00

Moles O / moles O = 4.35 mol / 2.17 mol = 2.00

The ratio is approximately N₁O₂.

We divide the subscripts by their greatest common divisor to obtain the simplest ratio, since we are looking for the empirical formula. The empirical formula is NO₂ since the greatest common divisor in this situation is 1.

The molecular formula of the compound is NO₂.

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Answer:

The rate law for the following reaction:

H2SiF6(aq)+2NaF(aq)+3H2O(aq)⟶Na2SiO3(s)+8HF(aq)

is second order in H2SiF6, zero order in NaF and first order in H2O.

To solve such this we must know the concept of displacement reaction. Therefore, the correct option is option C that is displacement reaction.

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

when zinc reacts with copper oxide then zinc displace copper from copper oxide as zinc is more reactive than copper on the reactivity series. So, copper is displaced by zinc.

Therefore, the correct option is option C that is displacement reaction.

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Hey there!

Mass = ?

volume = 105 mL

Density = 2.26 g/mL

Therefore:

D = m / V

2.26 = m / 105

m = 2.26 * 105

m = 237.3 g

Hope this helps!

Answer: 44.8 L

Explanation:

To find the volume, we would need to use the ideal gas law.

Ideal Gas Law: PV=nRT

We take the given information and plug it into the equation, but first, we have to manipulate the equation so that we are finding volume.

\(V=\frac{nRT}{P}\)

P= 1.00 atm (STP)

T= 273.15 K (STP)

R= 0.08206 Latm/Kmol

n= \(64g*\frac{1mol}{31.998 g O_{2} }=2 mol\)

\(V=\frac{(2 mol)(0.08206Latm/Kmol)(273.15 K)}{1.00atm} =44.8 L\)

Answer:

c

Explanation:

Answer:

the 3s orbital can hold more electrons than the 2s orbital. the 3s orbital has a different shape than the 2s orbital. the 3s orbital has a different orientation in space than the 2s orbital. the phrase "ground state electron configuration" means only one excited state has electrons.

Explanation:

The two functional groups that the aminoacid has according to the picture are amine and carboxyl.

In chemistry and related areas, a functional group can be defined as a group of atoms bonded in a specific molecule that can affect the was the molecule reacts or the specific behavior of it.

In the case of the molecule presented, which is an amino acid, two functional groups can be identified:

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The ion concentration of 0.05 M \(CaCl_2\) would be 0.05 mol Ca ions and 0.1 mol Cl ions respectively.

\(CaCl_2\) contains two ions according to the following equations:

\(CaCl_2 -- > Ca^{2+} + 2Cl^-\)

1 mole           1 mole   2 moles

0.05 M CaCl2 contains 0.05 moles of the solute in 1 liter of the solution. Thus, the equivalent mole of Ca ion would be 0.05 moles while that of Cl ion would be 0.10 mole (0.05x2).

Concentration of Ca ions = 0.05 moles

Concentration of Cl ions = 0.05 x 2 = 0.010 moles

In other words, the ion concentrations of 0.05 M CaCl2 would be 0.05 moles of Ca ions and 0.10 moles of Cl ions.

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Answer: 86,

α-decay

Explanation:

Answer:

its a theory

Explanation:

dealing with the behaviour of matter and light on the atomic and subatomic scale.

Scientists cannot pinpoint the changes or variations in the results to a single source when more than one variable is altered during an experiment. The outcomes can be attributed to the independent variable directly by examining and modifying each variable separately.

You can evaluate the outcomes of your experiment to determine how much one adjustment impacted the outcome by testing just one variable at a time. You won't be able to identify the variable that caused the outcome if you're testing two variables simultaneously. A controlled variable is one that is kept constant with the goal of not affecting how an experiment turns out. Controlling any factors that can affect an experiment's outcomes allows us to be certain that the altered variable is what caused our results.

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