What are the smallest whole number coefficients the reactants and products when the following molecular equation is correctly balanced? NH 3(8) +_O2(g) → _NO(g) + _H 20(8) O a. 1,1,1,1 6.3, 2, 3, 4 O c. 4,5,4,6 O d. 3, 4, 3, 4 O e. 2,3,2,3

Answer:

\(\frac{3}{2}\)

Explanation:

No of moles : \(\frac{given mass}{atomic mass}\)

so the given mass is 42 gm and atomic mass of silicon is 24 when u solve it u get 3/2

The oxidation reduction reaction are given below.

Oxidation half reaction:

Zn° →Zn² + 2e-

Reduction half reaction:

2Mn^5 +4e^- → 2Mn^2+

Belo w are the oxidation and reduction reaction of the common alkaline batteries to produce electricity.

Oxidation half reaction:

Zn° →Zn² + 2e-

Reduction half reaction:

2Mn^5 +4e^- → 2Mn^2+

To balance the overall reaction, we need to multiply each half reaction by appropriate coefficients to ensure that the electrons cancel out.

Here is the balance overall reaction.
2Zn° + 2Mn^5 → 2Zn² + 2Mn²+

The balanced equation shows that in alkaline batteries, zinc metal is oxidized to form zinc ion, while manganese ions are reduced to manganese(II) ions. The oxidation reduction reaction    generate an electric current as a result of the flow of electrons.

Learn more about oxidation and reduction below.

https://brainly.com/question/13892498

#SPJ1

When in a particular titration, 5.0 ml of a 2.0 m NaOH(aq) solution exactly neutralizes 10.0 ml of an HCl(aq) solution. The concentration of the HCl (aq) solution is found to be 1M.

The balanced chemical equation is given as,

NaOH  + HCl → NaCl  +  H₂O

Number of moles of NaOH  =  molarity × volume /1000

=  5 x 2/1000  =  0.01  moles

With the help of mole ratio between NaOH to HCl which is 1 : 1

Number of moles of HCl given = 0.01 moles

Therefore, concentration = moles/volume x 1000

                                           = 0.01/10 x 1000 = 1M

Hence, the concentration of the HCl (aq) solution is 1M.

Learn more about concentration from the link given below.

https://brainly.com/question/31271061

#SPJ4

The pairs which listed in order of increasing bond energy are I, II, and III. So, the answer is E.

The pair(s) listed in order of increasing bond energy are:

A) I only - F−F < Cl−Cl < Br−Br has increasing bond energy from left to right as the size of the atoms increase.

B) II only - H−F < H−O < H−N has decreasing bond energy from left to right as the electronegativity difference between the atoms increase.

C) I and III - F−F < Cl−Cl < Br−Br and C−O < C=O < C≡O have increasing bond energy from left to right as the bond order increases.

D) II and III - H−N < H−O < H−F and C−O < C=O < C≡O have decreasing bond energy from left to right as the electronegativity difference between the atoms increase and as the bond order increases.

E) I, II, and III - This option includes all the pairs listed above, so it is correct.

Learn more about bonding pairs at

https://brainly.com/question/15020023

#SPJ11

The resulting pressure of nitrogen is 50 kPa.

Use Boyle's Law (the pressure volume law).

According to this law - volume of a given amount of gas held varies inversely with the applied pressure when the temperature and mass are constant.

p₁V₁ = p₂V₂

V₁ = 10 m³; initial volume of nitrogen gas

p₁ = 125 kPa; initial pressure of nitrogen gas

V₂ = 25 m³; final volume of nitrogen gas

p₂ = ?; final pressure of nitrogen gas

125 kPa × 10 m³ = p₂ × 25 m³

p₂ = (125 kPa × 10 m³)  ÷ 25 m³

p₂ = 50 kPa

More about pressure: brainly.com/question/3083348

#SPJ4

Explanation:

download the app topper

\(\rule{2000pt}{1000000pt}\)

mamama

The first two reactions are double displacement reactions, the next three equations are single replacement reactions, and the last equation is a type of decomposition reaction.

An equation for a chemical reaction is said to be balanced if both the reactants and the products have the same number of atoms and total charge for each component of the reaction. In other words, both sides of the reaction have an equal balance of mass and charge.

Chemical formulae and symbols are used in chemical equations to depict chemical reactions. In a chemical equation, the reactants are represented on the left and the products are shown on the right.

To learn more about balanced reactions visit:

brainly.com/question/11904811

#SPJ1

0.753 M MgCl2 is the molarity of a solution prepared from 19.7 grams of mgcl2 in 275 milliliters of solutions

Molar concentration, also known as molarity, quantity concentration, or substance concentration, is a unit used to describe the amount of a substance in a solution expressed as a percentage of its volume. The number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units, is the most often used unit denoting molarity in chemistry.

One mol/L of a solution's concentration is referred to as one molar, or 1 M. Because the volume of most solutions very minimally changes with temperature owing to thermal expansion, using molar concentration in thermodynamics is frequently not practical. Usually, incorporating temperature adjustment factors or utilizing a temperature-independent metric will fix this issue.

To learn more about molarity  from the given link:

https://brainly.com/question/19943363

#SPJ4

You need 0.25 grams of magnesium phosphate to make 250 mL of a 0.10% (m/v) solution.

To calculate the grams of solute required to make 250 mL of 0.10% magnesium phosphate (m/v), you'll first need to determine the mass of the solute in the solution.

1. Convert the percentage to a decimal: 0.10% = 0.0010.
2. Multiply the decimal by the volume of the solution: 0.0010 x 250 mL = 0.25 grams.
3. The result, 0.25 grams, is the mass of magnesium phosphate needed to make 250 mL of a 0.10% (m/v) solution.

In summary, to make a 250 mL solution with a 0.10% (m/v) concentration of magnesium phosphate, you will need to dissolve 0.25 grams of the solute in the solvent.

To know more about magnesium phosphate  click on below link:

https://brainly.com/question/3413068#

#SPJ11

Answer:

I believe that they do contain additives

Explanation:

I think this because everything whether its sweets or food everything have additives

Hope this helps

sorry if not

Plz give brainliest

In the given structure of the resonance hybrid, there are three contributing resonance structures. Resonance Structure 1, Resonance Structure 2 and Resonance Structure 3.

Resonance Structure 1: Carbon 1 has a double bond with Carbon 2, and Carbon 2 has a double bond with Carbon 3. Carbon 3 has a double bond with Carbon 4, and Carbon 4 has a double bond with Oxygen. Carbon 1 and Carbon 3 both have a partial negative charge.

Resonance Structure 2: Carbon 1 has a double bond with Carbon 2, and Carbon 2 has a double bond with Carbon 3. Carbon 3 has a double bond with Carbon 4, and Carbon 4 has a double bond with Oxygen. Carbon 1 and Carbon 3 both have a partial negative charge.

Resonance Structure 3: Carbon 1 has a double bond with Carbon 2, and Carbon 2 has a double bond with Carbon 3. Carbon 3 has a double bond with Carbon 4, and Carbon 4 has a double bond with Oxygen. Carbon 1 and Carbon 3 both have a partial negative charge.

These three resonance structures contribute to the overall resonance hybrid.

To know more about resonance hybrid, refer

https://brainly.com/question/17211567

#SPJ11

The resonance hybrid consists of three contributing resonance structures, including a dotted double bond and partial charges on certain carbon atoms.

The three contributing resonance structures for the given resonance hybrid with a 5-carbon chain are:

https://brainly.com/question/34190348

#SPJ12

The number of hamburgers sold on Wednesday is 275.

Let's assume the number of hamburgers sold is x.

According to the given information, the number of cheeseburgers sold is 70 more than the number of hamburgers. So, the number of cheeseburgers sold can be expressed as x + 70.

The total number of hamburgers and cheeseburgers sold is given as 620, so we can set up the following equation:

x + (x + 70) = 620

Combining like terms, we get:

2x + 70 = 620

Subtracting 70 from both sides of the equation:

2x = 550

Dividing both sides by 2:

x = 275

Therefore, the number of hamburgers sold on Wednesday is 275.

for more questions on hamburgers

https://brainly.com/question/31214218

#SPJ8

The correct answer is: c. slightly weaker in proteins than in water.

Hydrogen bonds play a crucial role in maintaining the three-dimensional structure of proteins. However, during the unfolding or denaturation of a protein, the hydrogen bonds within the protein are disrupted. The energy required to break each hydrogen bond in a protein is about 2 kJ/mol.

In water, hydrogen bonds are also present and contribute to the unique properties of water. The strength of hydrogen bonds in water is typically around 4-25 kJ/mol, depending on the specific interactions and environment.

Since it takes less energy (2 kJ/mol) to break a hydrogen bond in a protein compared to the strength of hydrogen bonds in water, it implies that hydrogen bonds are slightly weaker in proteins than in water.

To learn more about proteins

https://brainly.com/question/29633638

#SPJ11

Explanation:

Answer 1-4

1. Cr(NO2)3

2. AlCl3

3. Na2CO3

4. Ba(OH)2

Answer: The number of neutrons will increase as we move from left to right in a periodic table.

Explanation:

Atomic number is equal to the number of protons.

Mass number is the sum of number of neutrons and number of protons.

As we move from left to right, both the atomic number and mass number increases.

For example: As we move from Lithium to berrylium to boron to carbon to nitrogen to oxygen to fluorine to neon , the number of neutrons increase from 4 to 5 to 6 to 6 to 7 to 8 to 10 to 10.

Thus the number of neutrons will also increase as we move from left to right in a periodic table.

Answer:

Atomic mass is never an integer number for several reasons

After pipetting the solution, the amount of water needed depends on the desired concentration and the amount of solution to be diluted.

When pipetting a solution to be diluted into a volumetric flask, the first step is to add the appropriate amount of water. The amount of water needed depends on the desired concentration and the amount of solution to be diluted. For example, if you are diluting 1 mL of a 5M solution to a 2M solution, you would need to add approximately 3 mL of water.

This can be calculated as follows:

C₁V₁ = C₂V₂

where, C₁ = initial concentration, C₂= final concentration, V₁= initial volume, V₂= final or desired volume.

Substituting the values, we can find the desired volume.

Once you have added the desired amount of water, you should mix the solution by swirling the flask or stirring the solution gently with a stirring rod. It is important to mix the solution thoroughly to ensure a uniform concentration of the solution.

Once the solution has been mixed, you should check the volume of the solution. You can do this by reading the volume at the bottom of the meniscus, which is the curved surface of the liquid. It is important to make sure that the volume is correct as this will affect the concentration of the solution.

Finally, you should adjust the volume of the solution as needed. If the volume is too high, you can remove a small amount of liquid using a pipette. If the volume is too low, you can add more water.

In summary, after pipetting the solution to be diluted into a volumetric flask, you should add the appropriate amount of water and mix the solution to get the desired concentration. You should then check the volume of the solution and adjust it as needed.

To know more about concentration refer here:

https://brainly.com/question/10725862#

#SPJ11

Answer:

→ 22.9 g of N2.

Explanation:

→ The molar mass of CuO is 63.5 + 16 = 79.5

→ The molar mass of N2 is 2×14 = 28

According to the equation, for every 3 molecules of CuO, one molecule of N2 is made.

Therefore,

3×79.5 g of CuO make 28 grams of N2.

Therefore,

195 g of CuO make

\(28×(195/3×79.5) = 22.9 g of N2.\)

#1

Heterogenous mixture mean unsimilar substances .

#2

An element is a substance made of only one type of atoms

7.8×10⁻² moles of water were in the sample of the salt

m(NiCl₂·6H₂O) = 3.5 g; mass of a hydrous salt

m(NiCl₂) = 2.1 g; mass of an anhydrous salt

m(H₂O) = m(NiCl₂·6H₂O) - m(NiCl₂)

m(H₂O) = 3.5 g - 2.1 g

m(H₂O) = 1.4 g; mass of water

M(H₂O) = 18 g/mol; the molar mass of water

n(H₂O) = m(H₂O) ÷ M(H₂O)

n(H₂O) = 1.4 g ÷ 18 g/mol

n(H₂O) = 0.078 mol; amount of water in the sample

The mole is an SI unit which measures the number of particles in substance. One mole is equal to 6.022·10²³ atoms.

More about mole: brainly.com/question/15356425

#SPJ4

Deciding whether or not to approve a mortgage Future changes in consumer purchase tendencies can be predicted using classification models.

A mortgage is a kind of loan used to buy or keep up real estate, such as a home, piece of land, or other construction. The borrower agrees to make a series of monthly payments, divided into principal and interest, to the mortgage lender. This frequently emerges as a succession of regular, weekly episodes. After then, the asset is forfeited as loan collateral.

Borrowers are need to fill out an application with their selected lender and fulfill a number of criteria, such as down payments and minimum credit scores. Before going on to the closing stage, mortgage applications must pass a stringent underwriting procedure.

To know more about entropy on

https://brainly.com/question/29669969

#SPJ4

Despite having to travel uphill for a portion of its route, a siphon may transport liquid from one container to a lower one by creating vacuum pressure and drawing liquid up the short leg.

And over the crest to the outlet. siphon means when a hill or high level terrain separates two reservoirs, a long bent pipe is used to transmit liquid from one reservoir at a higher elevation to another reservoir at a lower elevation is known as siphon. A partial vacuum's ability to pull a solid, liquid, or gas against itself is known as vacuum pressure. There is a pressure difference when air is removed from a space. Therefore, external air pressure serves as a limiter for suction pressure in . With increased pressure, not even a perfect vacuum pressure.

Learn more about pressure here

https://brainly.com/question/28310375

#SPJ4

The condition where only four chromosomes are present in some cells of a fruit fly is known as haploidy.

Haploidy can occur due to a variety of reasons, including errors during cell division, such as nondisjunction, which is the failure of chromosomes to separate properly during meiosis. In nondisjunction, the chromosomes fail to divide equally, resulting in daughter cells with abnormal numbers of chromosomes. In the case of the fruit fly, this can result in cells with only four chromosomes instead of the normal eight.

Haploidy can also occur naturally in certain stages of development, such as during gamete formation, where cells undergo meiosis to produce haploid gametes with half the number of chromosomes as the parent cell.

To learn more about chromosomes refer to:

brainly.com/question/29514935

#SPJ4

This can be explained by the ideal gas law, which states that pressure is proportional to the number of gas molecules within a container at a constant temperature. Therefore, as more gas molecules are produced during the reaction, the pressure within the container will increase.

What is Gas Law?

Gas laws are a set of fundamental principles that describe the behavior of gases under different conditions of temperature, pressure, and volume. The most commonly studied gas laws are Boyle's law, Charles's law, Gay-Lussac's law, and the combined gas law. Boyle's law states that at a constant temperature, the volume of a gas is inversely proportional to its pressure. Charles's law states that at a constant pressure, the volume of a gas is directly proportional to its temperature.

Gay-Lussac's law states that at a constant volume, the pressure of a gas is directly proportional to its temperature. The combined gas law combines these three laws to relate pressure, volume, and temperature of a gas. Gas laws are important in understanding the behavior of gases in many real-world applications, such as in chemical reactions, combustion engines, and weather forecasting.

The pressure inside the container will increase as the reaction occurs. This is because the reaction between magnesium and hydrochloric acid produces hydrogen gas, which is a gas that occupies space within the container. As the amount of gas within the container increases, the pressure inside the container will also increase if the temperature is held constant.

Learn more about   Gas Law  from given link

https://brainly.com/question/27870704

#SPJ1

Answer: 5

Explanation:

Cr3 has 3 atoms

(PO4)2 has 2 atoms

2 + 3 = 5 atoms

Magnesium and fluorine atoms will most likely form an ionic bond.

Ionic bonds are formed between elements with a large difference in electronegativity, which is the measure of an atom's ability to attract electrons towards itself. Magnesium and fluorine have a difference in electronegativity of 2.13, which is large enough to form an ionic bond.

In ionic bonds, one atom loses electrons and becomes a positively charged ion (cation), while the other atom gains electrons and becomes a negatively charged ion (anion). In this case, magnesium will lose two electrons to become Mg2+ and fluorine will gain one electron to become F-. These two ions will then attract each other electrostatically to form magnesium fluoride (MgF2), which is an ionic compound.

On the other hand, covalent bonds are formed between elements with a small difference in electronegativity, where atoms share electrons to achieve a stable electron configuration. Magnesium and fluorine have a large electronegativity difference, so they are unlikely to share electrons and form a covalent bond. Therefore, magnesium and fluorine will most likely form an ionic bond.

Learn more about electronegativity here:

https://brainly.com/question/3393418

#SPJ11

The pH at the equivalence point in titrating 0.100 M solution of HBr with 0.080 M NaOH is 1.699.

What is pH?

pH is defined as the negative logarithm of H+ ion concentration. Hence the meaning of the name pH is justified as the power of hydrogen. Mathematical definition of pH is-

pH = -log [H+]

Given,

Concentration of HBr = 0.100 M

Concentration of NaOH = 0.080 M

HBr + NaOH → NaBr + H₂O

Hydrogen ions get neutralised by hydroxide ions and remaining H+ concentration is = 0.1 - 0.08 = 0.02M

pH = -log [0.02]

pH = 1.699

Therefore, the pH at the equivalence point in titrating 0.100 M

solution of HBr with 0.080 M NaOH is 1.699.

Learn more about pH, here:

https://brainly.com/question/15289741

#SPJ1

SORRY

Answer: The answer is  Ernest Rutherford.

Explanation: