5. Which coefficients correctly balance the formula equation
Zn(OH)2 + CH3COOH → Zn(CH3COO)2 + H2O?
a. 1, 2, 1, 1
b. 2, 1, 2, 1
b. 1, 2, 1, 2
d. 2, 1, 1, 2

Answer: coal and natural gas

Explanation: because it takes a long time for them to form

Answer:

Non renewable resource is fossil fuels that cannot be replaced such as coal and oil

Explanation:

Materials generally become warmer when they are "absorbed" by light, this statement is more detailed. So, the correct answer is "absorbed by them."

Explanation: When a material absorbs light, it receives energy from the light, which leads to an increase in temperature. When light is absorbed by a material, the energy of the light is transformed into internal energy in the material. The temperature of a material can increase as a result of this energy absorption.

This is due to the fact that the increased internal energy of the molecules in the material causes them to vibrate more quickly and hence results in a temperature rise.

The light reflects or transmits when it passes through the material. When light reflects off a surface, it bounces back in the opposite direction. Transmitted light travels through a material without being absorbed by it.

To learn more about Materials visit;

https://brainly.com/question/27403649

#SPJ11

If the hydrogen gas is combusted and produces 645L of water vapor at 400 kelvin and 1.75 atm, 2796.96 g mass of the zinc is produced .

Using the ideal gas law equation:

PV = nRT

n = (PV) / (RT)

= (1.75 atm * 645 L) / (0.0821 atm·L/(mol·K) * 400 K)

= 42.71 moles

the balanced equation for the reaction between zinc and hydrochloric acid:

Zn + 2HCl -> \(ZnCl_{2}\)  + \(H_{2}\)

1 mole of zinc produces 1 mole of hydrogen gas. Therefore, the moles of zinc are also 42.71.

The molar mass of zinc is 65.38 g/mol.

Mass of zinc = moles of zinc * molar mass of zinc

= 42.71 moles * 65.38 g/mol

= 2796.96 g

Therefore, the mass of the zinc is 2796.96 grams.

learn more about hydrogen gas :

https://brainly.com/question/30829657

The theoretical yield of iron metal is 42.3 g

The equation for the reaction is:

Fe₂O₃ + 3CO → 2Fe + 3CO₂

Since, all of the carbon monoxide was consumed during the reaction, then carbon monoxide is the limiting reactant

Thus, iron (III) oxide is the excess reactant

From the question, we are to determine the theoretical yield of iron metal

First, we will write the balanced chemical equation for the reaction

The balanced chemical equation for the reaction is

Fe₂O₃ + 3CO → 2Fe + 3CO₂

This means

1 mole of iron(III) oxide reacts with 3 moles of carbon monoxide to produce 2 moles of iron metal and 3 moles of carbon dioxide gas.

Now, to determine the theoretical yield of iron metal

First, we will determine the number of moles of each reactant present

Mass = 75.0 grams

Molar mass = 159.69 g/mol

Using the formula,

\(Number \ of \ moles = \frac{Mass}{Molar\ mass}\)

Then,

Number of mole of Fe₂O₃ present = \(\frac{75.0}{159.69}\)

Number of mole of Fe₂O₃ present = 0.46966 mole

Mass = 50.0 g

Molar mass = 44.01 g

Then,

Number of moles of CO₂ present = \(\frac{50.0}{44.01}\)

Number of moles of CO₂ present = 1.136105 moles

Now,

If 1 mole of iron(III) oxide reacts with 3 moles of carbon monoxide to produce 2 moles of iron metal

Then,

0.378702 mole of iron(III) oxide will react with 1.136105 moles of carbon monoxide to produce 0.757403 moles of iron metal

Therefore, the number of moles of iron metal that would be produced is 0.757403 moles

Now, for the mass of the iron metal

Using the formula

Mass = Number of moles × Molar mass

Atomic mass of iron metal = 55.845 g/mol

Then,

Mass of iron metal that would be produced = 0.757403 × 55.845

Mass of iron metal that would be produced = 42.29717 g

Mass of iron metal that would be produced ≅ 42.3 g

Hence, the theoretical yield of iron metal is 42.3 g

The equation for the reaction is:

Fe₂O₃ + 3CO → 2Fe + 3CO₂

Since, all of the carbon monoxide was consumed during the reaction, then carbon monoxide is the limiting reactant

Thus, iron (III) oxide is the excess reactant

Learn more on Stoichiometry here: https://brainly.com/question/6061451

Moth flakes dissolve in methanol at a rate of A, 16.7 g/100mL.

The solubility of moth flakes in methanol is the maximum amount of the solute that can dissolve in a given amount of solvent at a given temperature.

To calculate the solubility of moth flakes in methanol, divide the mass of moth flakes by the volume of methanol and multiply by 100 to express the result as grams per 100 mL of solution.

So, the solubility of moth flakes in methanol is:

Solubility = (mass of moth flakes / volume of methanol) x 100

Solubility = (12.54 g / 75.2 mL) x 100

Solubility = 16.7 g/100mL

Therefore, the solubility of moth flakes in methanol is 16.7 g/100mL.

Find out more on solubility here: https://brainly.com/question/23946616

#SPJ1

Measuring the ratio of carbon isotopes in the atmosphere provides direct evidence linking the burning of fossil fuels to global climate change, as fossil fuel emissions have a distinct isotopic signature.

The "smoking gun" evidence that burning fossil fuels is causing global climate change comes from measuring the ratio of carbon isotopes in the atmosphere. Fossil fuels contain carbon with a distinct isotopic signature, characterized by a higher ratio of carbon-12 to carbon-13. When these fossil fuels are burned, carbon dioxide with a similar isotopic composition is released into the atmosphere. By analyzing the carbon isotopes in atmospheric samples, scientists can identify the contribution of fossil fuel emissions to the increase in atmospheric carbon dioxide levels. This provides strong evidence linking human activities, specifically the burning of fossil fuels, to the observed rise in greenhouse gas concentrations and subsequent climate change. Other indicators, such as the rapid rise in ocean temperature, increasing frequency of hurricanes, and shrinking time between glacial periods, also support the evidence for human-induced climate change but are not as direct and specific to fossil fuel emissions as the carbon isotope ratio measurements.

learn more about carbon isotopes here:

https://brainly.com/question/32908045

#SPJ11

The atomic hybrid orbitals which make up the bond between C and O in formaldehyde, \(CH_{2} O\) will be one s-orbital and two p orbital make sp2 hybridization.

The 3 new hybrid orbitals can only be created through  \(sp^{2}\) hybridization, which occurs whenever an atom's two pi orbitals including one s orbital overlap with mix together. Consequently, \(CH_{2} O\) (Formaldehyde) has \(sp^{2}\)hybridization.

It is found that when atoms share one electron then it will form sigma bond whereas when atoms share more than one electrons then it will form pi bond.

Therefore, the hybridization of  \(CH_{2} O\)  will be  \(sp^{2}\) hybridization.

To know more about atomic hybrid

https://brainly.com/question/1869903

#SPJ4

Explanation:

The pH of a substance with a hydrogen ion concentration of 1.2 ×10−2 M can be determined using the equation:

pH = -log[H+]

where [H+] is the concentration of hydrogen ions in moles per liter (M).

Substitute the given value of [H+] in the above equation:

pH = -log(1.2 ×10−2)

pH = -(-1.92) (taking antilog of -log(1.2 ×10−2) using a calculator)

pH = 1.92

Therefore, the pH of the substance is 1.92.

The pH scale is a logarithmic scale that measures the acidity or basicity of a substance. At neutral pH (pH 7), the concentration of hydrogen ions and hydroxide ions are equal. As the pH decreases, the acidity increases due to an increase in the concentration of hydrogen ions. A pH of 1.92 indicates that the substance is acidic as it has a higher concentration of hydrogen ions than hydroxide ions.

PLS mark my answer brainliest

The pH of a substance that has a hydrogen ion concentration of 1.2 × 10⁻² M is approximately 1.92.

To determine the pH of a substance with a hydrogen ion concentration of 1.2 × 10⁻² M, you can use the pH formula:

pH = -log₁₀[H⁺]

Where pH is the measure of acidity or alkalinity, measured on a scale of 0 - 14, -log₁₀ is the logarithm base 10, and [H⁺] represents the hydrogen ion concentration.

Plugging in the given concentration:

pH = -log₁₀(1.2 × 10⁻²)

Calculating the pH value:

pH ≈ 1.92

The pH of the substance is approximately 1.92, which indicates that it is acidic.

Learn more about pH here: https://brainly.com/question/26424076

#SPJ11

Considering the chemical formula, 3.045 moles of nitrogen N are in 67.0 g of nitrous oxide, N₂O.

Chemical formulas use letters and numbers to represent chemical species. The letters are called chemical symbols and represent the elements present in the chemical species.

The numbers located to the right of each chemical symbol is a subscript that indicates the number of moles of the element present in that compound. If no subscript appears after a chemical symbol, this implies that there is only one atom of that element.

The molar mass of N₂O is 44 g/mole. If the molar mass is the amount of mass that a substance contains in one mole, this means that 1 mole of N₂O contains 44 grams of the compound.

On the other hand, 1 mole (or 44 grams, according to the definition of molar mass) of N₂O contain 2 moles of N. So, you can apply the following rule of three: if 44 grams of the compound contains 2 moles of N, 67 grams of the compound contains how many moles of N?

amount of moles of N= (67 grams× 2 moles of N)÷ 44 grams

amount of moles of N= 3.045 moles

Finally, there is 3.045 moles of N.

Learn more about chemical compound:

brainly.com/question/9763665

#SPJ1

Acids are substances that turn wet blue litmus paper to red while bases are substances that turn red litmus paper to blue.

Acids and bases can be differentiated using their definitions as follows:

More on acids and bases can be found here: https://brainly.com/question/15192126

#SPJ1

Acid has hydrogen ion whereas base has hydroxyl ion.

Acid is a type of chemical compound that is dissolved in water and gives a solution with Hydrogen ions more than purified water. A base is a substance that gives electrons, takes protons, or releases hydroxide (OH-) ions. Acid is also called a proton donor. While a base is also called a proton acceptor.

Acids have a sour taste whereas Bases have a bitter taste. The pH value of acid is lower than 7. Basis has a pH value higher than 7. The strength of Acid depends on the number of Hydrogen ions. The strength of the Base depends on the amount  of Hydroxide ions

An acid is any hydrogen-carrying substance that is able of giving a proton that is to say a hydrogen ion to another substance. A base is a molecule or ion able to gain a hydrogen ion from an acid.

so we can conclude that the molecules which have hydrogen ions are considered acids while those molecules which have hydroxyl ions are considered bases.

Learn more about acid here: https://brainly.com/question/25148363

#SPJ1

According to the information provided, a chemical reaction results in the release or energy absorbed.

The correct option is B. Energy is either released or absorbed.

What is chemical reaction and example?

Reactants go through a chemical process and turn into product through a chemical reaction in a chemical reaction. For instance, the combination of oxygen and glucose in human breath results in the production of dioxide, water, and energy. A range of sectors benefit from and benefit from the contribution that chemistry makes to their development and growth. They include businesses in the glass, cement, paper, textiles, leather, and dye industries. Chemical is also widely used in sectors like paint, pigments, petroleum, sugar, polymers, and medicines.

Why do chemical reactions occur?

Chemical reactions occur when atoms form or break chemical bonds. The molecules that start a chemical reactions are known as reactants, and the molecules that are produced as a result of a reaction are known as products.

Therefore, the correct answer about chemical reaction is that in chemical reactions, energy is either released or absorbed.

To know more about chemical reactions visit: brainly.com/question/22817140

#SPJ4

The missing product : MgCl₂

Given

The reaction between Mg and FeCl₃

Required

The missing product

Solution

This reaction is a single replacement reaction

Occurs when one element replaces another element in the compound. The more active element will replace the less active element. The activity of this element can be seen from the voltaic series

Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Ag-Pt-Au

Mg is located to the left of Fe in the voltaic series so that it can replace Fe from its compound

General formula :

A + BC ⇒ AC + B

So the reaction :

3Mg + 2FeCl₃ → 2Fe + 3MgCl₂

The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.

To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.

First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.

In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.

To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.

We can start by calculating the number of moles of sodium chloride in 12 grams:

Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride

Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles

Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:

Volume of solution = mass of solution / density

Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L

Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:

Molar concentration = moles of solute / volume of solution

Molar concentration = 0.205 moles / 0.1 L = 2.05 M

Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.


To learn more about molarity click here: brainly.com/question/31545539

#SPJ11

Okay, let's solve this step-by-step without using quadratics:

1) The equilibrium constant Kc = 0.36 means the equilibrium lies to the left. So there will be more N2O4 than NO2 at equilibrium.

2) The initial concentration of N2O4 is 0.1 mol dm^-3. Let's call this [N2O4]initial.

3) At equilibrium, the concentrations of N2O4 and NO2 will be [N2O4]equil and [NO2]equil respectively.

4) We know the equilibrium constant expression for this reaction is:

Kc = ([NO2]equil)^2 / [N2O4]equil

5) Setting this equal to 0.36 and plugging in 0.1 for [N2O4]initial, we get:

0.36 = ([NO2]equil)^2 / (0.1 - [NO2]equil)

6) Simplifying, we get:

0.036 = [NO2]equil^2

7) Taking the square root of both sides, we get:

[NO2]equil = 0.06 mol dm^-3

So the equilibrium concentration of NO2 is 0.06 mol dm^-3.

Let me know if you have any other questions! I can also provide a more step-by-step explanation if needed.

Answer:

Sexual reproduction involves male and female sex cells known as - Gametes

Explanation:

In sexual reproduction new organisms are produced from the fusion of a male sex cell with a female sex cell. This fusion of gametes is called fertilisation. Sex cells are also known as gametes. Male gametes are made by male reproductive structures. Female gametes are made by female reproductive structures.

0.5 * x + 0.9 * y = 0.6 * is the equation that represents the total liters of acid that are needed.

What is an equation?

An equation is a mathematical statement that asserts the equality of two expressions. It uses an equal sign (=) to show that the expressions on either side of the sign have the same value. Equations are typically used to solve problems by finding the unknown values of certain variables.

The total amount of acid in the 50% solution can be represented as 0.5 * x liters.

The total amount of acid in the 90% solution can be represented as 0.9 * y liters.

The total amount of acid in the mixture of the two solutions should equal to 0.6 * liters, which is equal to the desired 60% solution.

So, the equation representing the total liters of acid needed is:

0.5 * x + 0.9 * y = 0.6 *

This equation represents the relationship between the liters of the two solutions used and the total amount of acid in the solution.

Therefore, 0.5 * x + 0.9 * y = 0.6 * is the equation.

To learn more about equation from the link

https://brainly.com/question/1284310

#SPJ4

Answer:

docx it is a science document

Answer:

i think B

Explanation:

B b b b b b b b b b b b b b b b b b b b b b b b b b b  b b b b b b  bb bb b b b b b b b b b b

Answer:

The formula is Na2C2O4

Explanation:

I hope this helps

The type of diversity that refers to differences in observable attributes or characteristics is called surface-level diversity.

Surface-level diversity encompasses the visible or easily observable attributes of individuals, such as age, gender, race, physical abilities, and appearance. These attributes are readily noticeable and do not require deep knowledge or understanding of an individual.

Surface-level diversity provides a basic understanding of the differences that exist among individuals within a group or organization. However, it is important to note that surface-level diversity only scratches the surface and does not capture the complexity of individuals' experiences, perspectives, and values.

It is necessary to go beyond surface-level diversity and also consider deeper dimensions such as deep-level diversity, which encompasses differences in beliefs, values, and experiences that are not readily observable.

To learn more about surface-level diversity click here :

brainly.com/question/30926985

#SPJ11

The term for the inactive form of pepsin that is activated by low pH is called pepsinogen.

Pepsinogen is the inactive precursor of pepsin, an enzyme that breaks down proteins in the stomach. Pepsinogen is produced and secreted by the chief cells of the gastric glands in the stomach lining.

When food enters the stomach and mixes with gastric acid, the low pH of the stomach acid causes pepsinogen to undergo a conformational change, converting it into the active enzyme pepsin.

Pepsin then catalyzes the hydrolysis of peptide bonds in dietary proteins, breaking them down into smaller peptides and amino acids that can be absorbed and utilized by the body. The conversion of pepsinogen to pepsin is an important regulatory mechanism in the digestive process, allowing for efficient protein digestion in the stomach.

To learn more about pepsinogen, click here:

https://brainly.com/question/29462356

#SPJ11

Answer:

Explanation:

When I was growing up, one of the most popular cartoons was a little possum whose name was Pogo. He often said

“We have met the enemy and he is us.”

It is something Pogo said more than once. We are the problem with biodiversity being threatened.

We clear land for agriculture, not only in Canada and the United States, but in places like Brazil where it matters what is done to the environment. Those trees are the planet's lungs. Whole environmental groups are devoted to stopping the harvesting of trees that are hundreds of years old.

Our oceans have become cesspools of plastic.

Our rivers have become dumping grounds for all kinds of pollutants like paint and car tires to name just a couple.

Our landscape has been cluttered by billboards advertising things that are hundreds of miles away.

There's mining, oil, and other industries that make Mother Nature shudder every time they come near her.

✯Correct Answer✯:

The correct answer that you are looking for would be:  

B.) Habitat loss

♪Explanation♪:

Habitat loss answer option is correct because removing trees deprives the forest of portions of its canopy, which blocks the sun’s rays during the day and retains heat at night. That disruption leads to more extreme temperature swings that can be harmful to plants and animals. Yet the effects of deforestation reach much farther, it is very sad for the environment ＞﹏＜.

I hope this helped you,

And I do hope you enjoy the rest of your day!  Here take this heart you need it. (ɔ◔◡◔)ɔ ♥          

-Kirby ★ ツ ✌                 

Answer:

The molar mass of O is 16 g/mol and since we have 2 oxygen molecules we multiply 16 g/mol to get 32 g/mol.  Therefore our best option would be option C, 32 g/mol.

Reactive mode composition factor analysis is a method used to understand and predict post hydrogen atom abstraction selectivity.

Reactive mode composition factor analysis is a computational approach that aims to analyze and predict the selectivity of reactions involving the abstraction of a hydrogen atom. By studying the composition of different reactive modes or reaction pathways, this method provides insights into the factors that influence the selectivity of these reactions. It helps identify the preferred sites for hydrogen atom abstraction and predict the relative reactivity of different substrates or reactants.

By understanding and quantifying the factors that contribute to selectivity, this analysis can aid in the design and optimization of reactions for desired outcomes.

You can learn more about hydrogen atom at

https://brainly.com/question/29434687

#SPJ11

The Maxwell-Boltzmann distributions is a description of the speeds of different gases at the same temperature.

The Maxwell-Boltzmann distributions is a description of the speeds of different gases at the same temperature. Recall that at the same temperature, the relative speed of gas molecules is described by the  Maxwell-Boltzmann distributions.

The question is incomplete hence we can not be able to show the exact relationship between the two graphs in order to arrive at a justification for the student's claim.

Learn more about Speed of gases: https://brainly.com/question/25713346

Answer:

Crude oil is a homogeneous mixture.

Explanation:

I got it right.

Answer: Crude oil is a homogeneous mixture.

Explanation: im doin edge