If an aerosol can contained 350 mL of CFC gas at a pressure of 5.7 atm, what volume would this gas occupy at 1.0 atm ?

Yes, the benefits of using nuclear energy outweigh the risks as  nuclear energy has help to solve electricity issues in the United states and other countries.

The benefits of nuclear energy  is that it is one of the cleanest forms of energy. Its carbon footprint is also among the smallest. It is among the solutions to the energy gap. It is crucial to how we respond to greenhouse gas emissions and climate change.

Note that A clean energy source with no emissions is nuclear. It produces energy by fission, which is the splitting of uranium atoms to release energy. With no toxic byproducts created from fossil fuels, the heat from fission is used to create steam that powers a turbine and produces electricity.

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Hydrogen peroxide decomposes with MnO₂ to form water and oxygen gas.

The decomposition of hydrogen peroxide with MnO₂ is a chemical reaction in which hydrogen peroxide is decomposed into water and oxygen by the action of manganese dioxide. The chemical equation for peroxide and water is:

2H₂O₂ → 2H₂O + O₂

The mechanism and working of the above reaction are as follows:

1. Hydrogen peroxide (H₂O₂) reacts with manganese dioxide (MnO₂) to form Mn(OH)₂ and water (H₂O).

2. Mn(OH)₂ oxidizes to MnO₃, which then decomposes to MnO₂ and oxygen (O₂).

3. The oxygen gas produced in this reaction reacts with water to form hydrogen peroxide (H₂O₂), which completes the decomposition reaction.

The overall equation for the decomposition reaction is,

2H₂O₂ --> 2H₂O + O₂

The MnO₂ acts as a catalyst, meaning it speeds up the reaction without being used up in the process.

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Answer:

CHESNUT

Explanation:

I GOT THE TEST 100

Answer:

EE is the answer

Explanation:

The salt that we are going to get in this reaction is calcium bromide.

The term neutralization has to do with the kind of reaction that occurs between an acid and a base. When an acid is known to react with a base, the products of the reaction are salt and water only.

Now we know that the reaction that occurs between hydrobromic acid and calcium hydroxide is a neutralization reaction and it is taking place between a strong acid and a strong base. The salt that is produced is calcium bromide.

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When a strong acid and a strong base such as HBr and [tex]Ca(OH)_2[/tex] react, the salt that would be produced is [tex]CaBr_2[/tex].

When an acid and a base react, salt and water are formed as the only product or part of the products. These kinds of reactions are otherwise known as neutralization reactions.

Strong acid and a strong base such as HBr and [tex]Ca(OH)_2[/tex] react accordingly to form salt and water according to the following equation:

[tex]2HBr + Ca(OH)_2 --- > CaBr_2 + 2H_2O[/tex]

In other words, when a strong acid and a strong base such as HBr and [tex]Ca(OH)_2[/tex] react, the salt formed is  [tex]CaBr_2[/tex].

Neutralization reactions between a strong acid and a strong base always produce salts that are neutral.

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The mass of the water in the sample is equal to 8.982 grams.

The water molecule is formed by reacting hydrogen gas and oxygen gas. The chemical reaction of water formation is shown below.

[tex]2H_2 (g) +O_2(g) \longrightarrow 2H_2O(l)[/tex]

The balanced chemical equation can be described as an equation where the number of moles of each element on the reactant side is equal to the number of moles on the product side.

Given the mass of the hydrogen in the sample of water = 0.998 g

The molecular mass of water (H₂O) = 2 (1) + 16 = 18 g

It means 2g of hydrogen is present in the amount of water = 18 g

0.998 g of hydrogen will present in water = (18/2) ×0.998 = 8.982 g

Therefore, 8.982 grams of water is present in the sample.

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The answers include the following:

Thus is referred to as the series of changes and developments which occurs in an organism as it passes through from the beginning of its life until it dies.

Insect and robber crab’s life cycle are similar such that they both hatch from eggs and the difference is that insect has a pupa stage while the robber crab lacks it.

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Answer: i think its empirical

Explanation:

The value of x in the hydrated salt is 5.

In this case, we are to obtain the value of the x that is found in the formula of the compound as we have it. We now have to make use of the formula that is written as;

Number of moles of hydrated salt = Number of moles of the anhydrous salt

Number of moles of hydrated salt =  10.00 /160 + 18x

Number of moles of anhydrous salt = 6.39/160

Then we apply the formula to have;

10.00 /160 + 18x = 6.39/160

10.00 /160 + 18x = 0.03994

0.03994(160 + 18x) = 10

6.39 + 0.719x = 10

x = 10 - 6.39/0.719

x = 5

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Law of conservation of mass gives clear evidence that matter is conserved in the chemical reaction

Experiments in the 1700s by a French chemist named Antoine Lavoisier led to the conclusion of conservation of mass. Lavoisier carefully measured the mass of reactants and products in multiple chemical reactions.

He carried out all the reactions inside a sealed jar. In each and every case, the total mass of the jar and its contents remained the same after the reaction as it was before the reaction took place.

This showed proof that matter was neither created nor destroyed in the reactions. Another outcome of Lavoisier’s research was the discovery of oxygen which was also a remarkable discovery as we all know.

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. For example, the carbon atom in coal becomes carbon dioxide when it is burned into ashes. The carbon atom changes from a solid structure to a gas but its mass remains the same. It does not change at all.

All these observations led to the theory that mass/ matter is conserved in a chemical reaction

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10) A gas in the container with a volume of 204 mL contains 0.56 moles of gas.  Gas is removed from the container so that it contains 0.26 moles. The new volume of gas in the milliliters is 94.7 mL.

According to the Avogadro's law, equal volumes of different gases contain equal number of molecules. It is shown by the mathematical formula

V₁/n₁=V₂/n₂

Where V₁=204 mL, n₁=0.56 mol, V₂=?, n₂=0.26 mol. Rearrange the formula for V₂

V₂=(V₁×n₂/n₁)

Plug all values in the formula and find V₂

V₂=(204 mL×0.26 mol/0.56 mol)

V₂=53.04 mL/0.56

V₂=94.7143 mL≈94.7 mL

Therefore, the new volume of gas is 94.7 mL.

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Answer:

Explanation:

For an 18-Carbon saturated fatty acid (stearic acid), it will produce 9 Acety-CoA. Each Acetyl-CoA will enter the Krebs Cycle and will produce 12 ATP.

According to the specific heat capacity, 37752.33 J  of energy is required to lower temperature of water.

Specific heat capacity is defined as the amount of energy required to raise the temperature of one gram of substance by one degree Celsius. It has units of calories or joules per gram per degree Celsius.

It varies with temperature and is different for each state of matter. Water in the liquid form has the highest specific heat capacity among all common substances .Specific heat capacity of a substance is infinite as it undergoes phase transition ,it is highest for gases and can rise if the gas is allowed to expand.

It is given by the formula ,

Q=mcΔT

It is calculated as, Q=32.45×4.2×277=37752.33 J.

Thus, 37752.33 J of energy is required to lower temperature of water.

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Answer:

Explanation:

As a result, the reaction of propane (C H) 3 8 and oxygen should produce carbon dioxide, water, and heat as products, and the balanced chemical equation will be: C H3 8 + 5O2 3CO2 + 4H O2 + heat. Reactants have the next highest potential power level when compared to materials.

Answer:

water and carbon dioxide

Explanation:

Propane undergoes combustion reactions in a similar fashion to other alkanes. In the presence of excess oxygen, propane burns to form water and carbon dioxide.

I hope this helps!

Number many peaks are present in the ¹H-nmr spectrum of Eugenol are having 12 different hydrogen atom.

The Eugenol has contain the 12 different hydrogen atoms. in the ¹H-nmr spectrum  the peaks from right to left is 3:2:2:3:2. The three hydrogen atoms have two peaks of about the 6.7 pm. These hydrogen atoms are from the aromatic ring. the four hydrogen atoms have two peaks of around 6 pm.  the one peak is from the hydrogen atom in the OH group. the vinylic hydrogen atoms are 3 they have one peak.

Thus, Number many peaks are present in the ¹H-nmr spectrum of Eugenol are having 12 different hydrogen atom.

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The amount of energy given off, given that 0.0265 g of matter is converted into energy is 11925×10⁸ Kgꞏm²/s²

We'll begin by converting 0.0265 grams to kilograms. This can be obtained as follow

1000 grams = 1 Kilograms

Therefore,

0.0265 grams =(0.0265 grams × 1 Kilograms)/ 1000 grams

0.0265 grams = 0.0000265 Kilograms

Finally, we shall determine the energy given off. This can be obatianed as illustrated below

E = ½mc²

E = ½ × 0.0000265 × (3×10⁸)²

E = 11925×10⁸ Kgꞏm²/s²

Thus, we can conclude from the calculation made above that the energy given off is 11925×10⁸ Kgꞏm²/s²

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1. Tomatoes taste better when fish DNA is inserted into them.--- opinion

2. Genes from different species can be spliced into an organism to produce desired traits.--- fact

3. Cereal is more filling when cow DNA is inserted into it.--- opinion

4. Testing GMOs on rats and cockroaches is ethically wrong. --- opinion

5. The genes from GMO plants can spread to natural species if they successfully mate. --- fact

6. GMO crops can be designed to grow in environments where the natural species can’t grow.--- fact

A GMO, or genetically change organism, is a plant, animal, microorganism, or another organism whose genetic rouge has been amended in a laboratory using genetic engineering or transgenic technology.

The United States Department of Agriculture considers GMOs to be plants or animals with heritable swaps introduced by genetic engineering or traditional methods, while GEO correctly refers to organisms with genes found, eliminated, or rearranged using molecular biology, particularly recombinant DNA.

So we can conclude that a genetically modified organism is any organism whose genetic matter has been altered using genetic engineering techniques.

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Drag each label to the correct location on the chart.

Classify the statements related to GMOs as bias or fact.

Tomatoes taste better when fish

DNA is inserted into them.

Genes from different species

can be spliced into an organism

to produce desired traits.

Cereal is more filling when a cow

DNA is inserted into it.

Testing GMOs on rats and

cockroaches is ethically wrong.

The genes from GMO plants

can spread to natural species

if they successfully mate.

GMO crops can be designed to

grow in environments where

the natural species can’t grow.

The most logical explanation for this difference in the two types of soil on the crime scene is that the darker sample is wetter than the lighter sample.

The soil is the outermost part of the earth crust on which plants grow. We know that there are different kinds of soil. The properties of each type of soil depends on what type of soil it is.

We have to know that the darker soil that was found on the crime must be loamy soil. The soil is darker because of a greater content of humus which is essentially composed of organic matter that is found in that type of soil.

The presence of the humus in the loamy soil not only makes for the black color but makes the soil to be able to hold more moisture in contract to the sandy soil which is lighter and does lack organic matter and moisture.

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The mass of the zinc that is required is 184.6 g.

We know that the term reaction has to do with the combination of two substances. Often times, we would have a new substances that is formed which is the product of the reaction.

Let us look at the reaction between zinc and copper II sulfate and that reaction is written as; [tex]Zn(s) + CuSO_{4} (aq) ------ > ZnSO_{4} (aq) + Cu(s)[/tex]

Number of moles of the copper sulfate = 454 g/159.61 g/mol

= 2.84 moles

Now, the reaction is 1:1  we can see;

Number of moles = mass/molar mass

Mass of Zn = 2.84 moles * 65 g/mol

= 184.6 g

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Explanation:

2.50 × 2/ 1

the answer is

5 moles

121.523 nm  is the wavelength (in nm) of the photon absorbed for a transition of an electron.

[tex]n_1=1 ,n_2=2[/tex]

[tex]1/\lambda=1.09737 *10^7*1/1^2 *1/2^2=8230275m^-1[/tex]

[tex]\lambda=1/8230275[/tex]

1.215x10^-7 m=121.523 nm

since the dating between wave frequency and wavelength is inverse, gamma rays have extraordinarily tiny wavelengths that are best a small portion of the size of atoms, whereas different wavelengths can extend as a long way as the universe. No of the medium they are passing via, electromagnetic radiation's wavelengths are commonly expressed in phrases of the vacuum wavelength, but this isn't always said explicitly.

The wavelength of electromagnetic radiation influences how it behaves. speed of mild = wavelength x frequency power = Planck's consistent x frequency Wave wide variety = 1/wavelength in cm. The wavelengths of different elements of the electromagnetic spectrum are displayed collectively with a difficult approximation of the wavelength size.

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The pH of the lactic acid solution after the addition of 0.00mL of NaOH is 2.49.

The pH of the lactic acid solution after the addition of 0.00mL of NaOH is determined as follows:

Ka =  [H⁺] * [A⁻] / [HA]

pKa = 3.86

Ka = 10⁻³°⁸⁶

Ka = 1.38 * 10⁻⁴

[H⁺] is hydrogen ion concentration = x

[A⁻] is the concentration of conjugate base at equilibrium = x

[HA] is the concentration of the acid at equilibrium = 0.10 M

HC₃H₅O₃ ⇄ H⁺ + C₃H₅O₃⁻

Ka =  [H⁺] * [C₃H₅O₃⁻] / HC₃H₅O₃

Ka = x * x / 0.1 - x

assuming x is negligible, 0.1 - x = 0.1

1.38 * 10⁻⁴ = x² / 0.1

x = 3.71 * 10⁻³

[H⁺] = 3.71 * 10⁻³

pH = -log 3.71 * 10⁻³

pH = 2.49

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Considering the definition of atomic mass, isotopes and atomic mass of an element, the isotope 210-X has a percent natural abundance of 90% and the isotope 212-X has a percent natural abundance of 10%.

The atomic mass is obtained by adding the number of protons and neutrons in a given nucleus of a chemical element.

Isotopes are called atoms of the same element, whose nuclei have the same number of protons but a different number of neutrons, and therefore differ in mass number.

The atomic masses of chemical elements are calculated as the weighted average of the masses of the different isotopes of each element, taking into account the relative abundance of each of them.

In this case, you know:

Then, the average mass of X can be expressed as:

210 amu×x + 212 amu×(1 -x)= 210.2 amu

210 amu×x + 212 amu×1 -212 amu×x= 210.2 amu

210 amu×x + 212 amu -212 amu×x= 210.2 amu

210 amu×x -212 amu×x= 210.2 amu - 212 amu

(-2 amu)x= -1.8 amu

x= (-1.8 amu)÷ (-2 amu)

x= 0.9= 90%

Finally, the relative abundance of the isotopes is:

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wavelength of  (λmax) for Cu(NH3)4 2+ is less than  λmax for Cu(H2O)6 2+

Gamma rays have incredibly short wavelengths that are only a small percentage of the size of atoms, but other wavelengths can stretch as far as the cosmos since the connection between wave frequency and wavelength is inverse. Although it isn't often stated explicitly, electromagnetic radiation's wavelengths are typically represented in terms of the vacuum wavelength, regardless of the medium they are traveling through.

Electromagnetic radiation's behavior is influenced by its wavelength. wavelength x frequency equals the speed of light. Energy equals Planck's constant times frequency. Wave number in cm equals 1/wavelength. A rough estimate of the wavelength size is shown along with the wavelengths of several regions of the electromagnetic spectrum.

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The number of sodium atoms in a formula unit of the sodium chromate is 2.

We know that the formula of a compound is the way that we can be able to know the atoms that we can find in the compound. The chemical formula shows the number of atoms of each of the elements that is present.

Now let us look at the formula unit of of sodium chromate as we have shown in the image that is attached to this answer. It shows us the number of the oxygen, sodium and the chromium atoms that we have in a formula unit of the sodium chromate.

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Answer:

115.24g Fe₂O₃

Explanation:

Answer: 2 moles

Explanation:

In the balanced equation, it can be seen that everything reacts in a 1:1 mol ratio except water (H2O) as determined by the coefficient. It is simple stoichiometry, 1 mol CO2 * 2 mol H2O/1 mol CO2 = 2 mol CO2. After doing the math, the CO2 cancels out, leaving how many moles of H2O there are.

A gas occupies a volume of 100 cm3 at a pressure of 760 mmHg then the volume will be 0.4 L

Volume is defined as the space occupied within the boundaries of an object in three-dimensional space

Here given data is

V₁ =  100 cm³ = 0.1L

P₁ = 760 mmHg

V₂ = ?

P₂ = 190mmHg

Then the formula is

P₁V₁ = P₂V₂

760 mmHg×0.1L =  190mmHg×V₂

V₂ =  760 mmHg×0.1 L/190mmHg

V₂ =  0.4 L

The volume if the pressure decreases to 190mmHg at constant temperature is 0.4 L

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Answer:

the three states of matter are solid liquid and gas so the one that would also have fluids is liquid