17. the pressure of air in a 2.25 l container is 1.20 atm. (a) what is the new pressure if the sample is transferred to a 6.50 l container at the same temperature? (b) if after container transfer the temperature is raised from 295 k to 310 k, what is the pressure?

Answer:

answer is d

i hope this helps you

The reaction that represents natural nuclear decay is 335 U → He + 331 Th, i.e., option C.

Nuclear reactors continue to operate by enclosing the nuclear fission process.

Even after fission has stopped, radioactive decay of fission products and transuranic elements formed in a reactor produces heat.

Fission reactions can be moderated in order to increase fission or unmoderated in order to breed more fuel.

The reaction that represents natural nuclear decay is

Thus, the correct option is C.

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The gram formula mass of sodium sulfide is 78.04 g/mol.

Sodium sulfide is a chemical compound with the formula Na₂S, which is a type of salt. It is white in color, water-soluble, and deliquescent. It has a pungent odor similar to hydrogen sulfide due to its tendency to hydrolyze. The compound is a common source of hydrogen sulfide, which is a highly toxic gas. This substance is frequently utilized in various industries as a reducing agent.

The gram formula mass is the sum of the gram atomic masses of each atom in the formula for a compound. To determine the gram formula mass of sodium sulfide, you need to find the atomic masses of each element that make up the compound. The formula for sodium sulfide is Na₂S.

Here's how to calculate the gram formula mass of sodium sulfide:

Add the atomic mass of Na and atomic mass of S; atomic mass of Na is 22.99 g/mol, and atomic mass of S is 32.06 g/mol, so:

Na₂S = 2 Na + S= 2 (22.99 g/mol) + 32.06 g/mol= 45.98 g/mol + 32.06 g/mol = 78.04 g/mol

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The preferred chair to sit on a sunny day is the one made of aluminum. It offers a more comfortable seating experience compared to the iron chair. The aluminum chair's higher specific heat capacity helps it absorb less heat and stay cooler.

Aluminum is the preferred choice for sitting on a sunny day due to its higher specific heat capacity (c=0.89 J/g°C) compared to iron (c=0.45 J/g°C). Specific heat capacity refers to the amount of heat energy required to raise the temperature of a substance by one degree Celsius per gram.

When exposed to the sun, both chairs will absorb heat energy from the sunlight. However, aluminum has a higher specific heat capacity, meaning it can absorb more heat energy per gram compared to iron. This results in the aluminum chair heating up at a slower rate than the iron chair.

The slower rate of heat absorption by the aluminum chair makes it more comfortable to sit on during a sunny day. It will take longer for the aluminum chair to reach an uncomfortable temperature compared to the iron chair, providing a more pleasant seating experience.

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Explanation:

I know only one.You are in form.....

This problem is providing the equilibrium reaction whereby SO3 is produced and asks for the value of the equilibrium constant. After the calculations, the answer turns out to be 0.124.

In chemistry, when a chemical reaction attempts to go to completion, it might experience a limitation known as equilibrium; a condition where it is not able to proceed any further.

In such a way, for the given reaction:

\(2SO_2(g)+O_2(g)\rightleftharpoons 2SO_3(g)\)

We can write the equilibrium expression as:

\(K=\frac{p_{SO_3}^2}{p_{SO_2}^2p_{O_2}}\)

Hence, given the total pressure at equilibrium, we can add the pressures of all the species at equilibrium including the reaction extent, x:

\(P_{eq}=p_{SO_3}+p_{SO_2}+p_{O_2}\\\\3.80=(2x)+(2.98-2x)+(1.18-x)\)

Thus, we solve for x to obtain:

\(3.80-2.98-1.18=2x-2x-x\\\\-0.36=-x\\\\x=0.36bar\)

Hence, we plug it in into the equilibrium expression to obtain the equilibrium constant as follows:

\(K=\frac{(2x)^2}{(2.98-2x)^2(1.18-x)}\\\\K=\frac{(2*0.36)^2}{(2.98-2*0.36)^2(1.18-0.36)}\\\\K=0.124\)

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Answer:The two types of chemical bonds that atoms can form to achieve stability are called ionic bonds and covalent bonds. Does this help

Explanation:

Answer:

When popcorn is popped, liquid inside the kernel is changed to steam. Pressure from the steam builds up inside the kernel. When the pressure reached a critical stage the kernel pops turning itself inside out. This is a physical change.

Explanation:

The gas with the slowest average molecular speed at a particular temperature is chlorine, or Cl2. The right answer is 5.

The formula for the typical molecular speed is:

The atomic speed is 1/M.

Where,

The molecular mass is M.

N2 has a molecular weight of 28.01 g/mol.

F2 has a molecular weight of 37.99 g/mol.

Carbon monoxide has a molecular weight of 28.01 g/mol.

Cl2 has a molecular weight of 70.90 g/mol.

The average molecular speed decreases with increasing molecule mass. The average molecular speed increases with decreasing molecular weight.

The chlorine has the slowest average molecular speed as a result.

The substance with the slowest average molecular speed is chlorine, or Cl2. Hence option 5 is correct.

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An object that requires a larger force to accelerate has a greater mass and greater inertia. Hence, option A is correct.

A property of matter by which it remains at rest or in motion in the same straight line unless acted upon by some external force.

The more mass found in an object, the more inertia it contains and therefore the greater its tendency to resist change.

That is precisely why applying a net force on two objects of different masses will cause the lighter mass to accelerate more than the object that has a higher mass.

An object that requires a larger force to accelerate has a greater mass and greater inertia. Hence, option A is correct.

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Answer: The answer is A

Explanation:

An object that requires a larger force to accelerate has a larger amass and a greater inertia

Answer:

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Explanation:

quieropapas

One calcium ion \((Ca2^+)\)and two bromide ions\((Br^-)\)are produced when \(CaBr^2\) (calcium bromide) dissolves in water.

The ionic compound calcium bromide \((CaBr^2)\) is made up of calcium cations \((Ca2^+)\)and bromide anions \((Br^-)\)in a 1:2 ratio. It is a crystalline white substance that is very soluble in both alcohol and water.

Therefore, One \(Ca2^+\) ion and two Br- ions are produced by each formula unit of\(CaBr^2\) in solution. This is due to the fact that the ionic compound \(CaBr^2\) dissociates in water, causing the compound to separate into its individual ions, which are then solvated by water molecules.

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Methane is a gas which is colourless and and odorless. It is a hydrocarbon with formula CH₄. Where as Hexane is an alkane containing 6 carbon atoms. Its molecular formula is C₆H₁₄. For the structure refer the figure given below.

Coming to the properties there are both physical and chemical properties.

Hexane is a colourless volatile liquid and undergoes combustion reaction, being a higher hydrocarbon it undergo thermal cracking.

It is commonly used as solvents, biodiesel production etc. Boiling point is 69⁰C and melting point is 95⁰C.

Methane is a gas which is colourless and odorless.  It  is lighter in air, slightly soluble in water, it is flammable.  boiling point is -162⁰C and melting point is -183⁰C.It is used as fuel, it is used in explosives.

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Option C. The character has a mass of 85. zero kg and weighs 305 N mercury is three.59 Venus is eight.87 Earth is 9. eighty-one mars three.77: C.earth

Earth is expected to be 4.54 billion years old, plus or minus about 50 million years. Scientists have scoured the Earth looking for the oldest rocks to radiometrically date. In northwestern Canada, they determined rocks approximately four.03 billion years vintage.

The earliest existence on earth might have been just as purple as its miles green nowadays, a scientist claims. ancient microbes might have used a molecule other than chlorophyll to harness the solar rays, one which gave the organisms a violet hue. The third planet from the sun, Earth is the handiest region in the acknowledged universe shown to host existence. With a radius of 3,959 miles, Earth is the 5th largest planet in our sun machine, and it's the handiest one regarded as positive to have liquid water on its floor. Earth is also unique in phrases of monikers.

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Answer:

molten

Explanation:

Lava is molten rock that breaks through the earth's surface

Lava is molten rock.

Lava is a molten rock flowing from volcano. It belongs to the category of igneous rocks.

Igneous rocks are one of the three main types of rocks, and are formed when molten material, either magma or lava, solidifies. These rocks are made up of a variety of minerals, and the cooling process determines their physical properties.

Depending on how quickly the molten material cools, the texture of the igneous rock can range from fine-grained to coarse-grained. Igneous rocks can be further classified based on the silica content, with the most common classifications being felsic, intermediate, mafic, and ultramafic.

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Answer:

1. 1.72 moles of potassium.

2. All of the answers are true

3. Are used up during a reaction

Explanation:

Recall that the number of moles is obtained from;

Number of moles= Mass of potassium/ molar mass of potassium

Mass of potassium= 67 g

Molar mass of potassium= 39 gmol-1

Number of moles of K= 67 g/ 39 gmol-1

Number of moles = 1.72 moles of potassium.

2. When we look at all the options, we will realize that all the options are true. The rate of reaction doubles for each 10°C rise in temperature, increasing reactant concentration increases particle collision and ultimately increases the rate of reaction. Rate of reaction deals with rate of disappearance of reactants or rate of appearance of products.

3. Catalysts remain unchanged in a chemical reaction because they do not actually participate in the reaction. Hence they are not used up in any chemical reaction.

The solution is subsequently neutralized by the addition of potassium acetate, which also enables the renature of catenated plasmids.

Plasmid DNA is defined as "circular, double-stranded DNA that replicates independently from the bacterial chromosome and is found in the cytoplasm of bacteria."Some smaller eukaryotes and archaea also have plasmid DNA.

As we discussed in the section above, plasmid DNA is used in gene therapy to introduce the desired gene into a particular cell type.

Single-gene illnesses can now be avoided with the help of gene therapy techniques.

In recombinant DNA technology, the manufacture of insulin is one of the most well-known applications of plasmid or vector DNA.

The plasmid DNA is used to artificially generate therapeutically significant medicines and proteins outside the cell.

Recombinant DNA is also utilized to transfer the gene for a variety of objectives, such as the construction of GMO, GMP, and other resistant kinds of plants.

The recombinant DNA technology is also used to transfer the gene for a variety of reasons, including the construction of GMO, GMP, and other resistant kinds of plants.

The creation of knockout mice and the research of gene knockouts both make use of plasmid DNA.

In addition, gene mapping and gene cloning both employ plasmid DNA.

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The compounds in a calorimeter releases 14.0 kJ of heat, but the heat it also generates will be equivalent to the heat the calorimeter gains.

Mass, specific heat, and temperature change are all components of heat energy.

Thus, 14000 J equals 1200 g times 3.55 (x-22.5) 14000 equals 4260 (x-22.5) x-22.5 equals 3.286 x, which equals 25.786 25.9

This means that the final temp is 25.8 °C.

The volume & heat is produced during a specific time period are measured using calorimeters. The flow is then routed through a tank that contains some water that has been pre-weighed and thermally characterized.

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Answer:

6.02*1022

Explanation:

I don't know why

Answer:  5.43x10^23 g/mole M&M's

Explanation:

1 bag of M&M's = 1.75oz       (1.75oz)*(453.6g/16oz) = 49.61 g

1 bag = 55 M&M's

(49.61 g)/55 M&M = 0.9021 g/MM

1 mole M&M's = 6.023x10^23 M&M's

(6.023x10^23 M&M's)*(0.9021 g/MM's) = 5.43x10^23 g/mole  molar mass

A redox reaction is a chemical reaction in which one or more of the reacting species undergoes oxidation and one or more undergoes reduction. An oxidizing agent is an element or compound that oxidizes another substance, while a reducing agent is an element or compound that reduces another substance.

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Using the mathematical and computational thinking can be used to support a claim regarding relationships among voltage, current and resistance because the relationship between current, voltage, and resistance can be demonstrated by Ohm's law, which states that current is proportional to voltage divided by resistance.

The relationship between current, voltage, and resistance can be represented by the following formula:

I = V / R

Where:

Using this formula, we can make a claim about the relationship between current, voltage, and resistance. For example, if we increase the voltage and keep the resistance constant, the current will also increase. Conversely, if we increase the resistance and keep the voltage constant, the current will decrease. This is because there is an inverse relationship between resistance and current, and a direct relationship between voltage and current.

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Answer:

the answers is 1.204×10/23

Explanation:

idek

According to Avogadro's number, there are 1.204 × 10²³ atoms in 39.39 g of gold.

To determine the number of atoms in 39.39 g of gold, we need to use the Avogadro's number, which is equal to 6.022 × 10²³ atoms/mol.

First,  need to convert the given mass from grams to moles by dividing it by the molar mass of gold, which is 196.967 g/mol.

\(\dfrac{39.39}{196.96}\\=0.19999\) moles

Now, we can use Avogadro's number to find the number of atoms:

\(0.19999\times6.023\tims10^2^3\\=1.204\times10^2^3\)

Therefore, the prospector has 1.204 × 10²³ atoms of gold.

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The chemical equation for the formation of carbonic acid (H₂CO₃) from carbon dioxide (CO₂) and water (H₂O) is as follows:

CO₂ (g) + H₂O (l) ⇌ H₂CO₃ (aq)

A chemical equation is a representation of a chemical reaction using chemical formulas and symbols. It indicates the reactants, products, and their respective stoichiometric coefficients. The chemical equation provides information about the identities and quantities of the substances involved in the reaction.

A balanced chemical equation represents the conservation of atoms, meaning that the number of atoms of each element is the same on both sides of the equation.

In this equation, carbon dioxide reacts with water to form carbonic acid. The reaction can go in both directions, indicating the equilibrium nature of the process.

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Answer:

1. direct current. 2. electrical power

Explanation

i believe number 2 is right

Answer:

1.09 moles

Explanation:

Sodium has a molar mass of 23 grams per mole. To get the number of moles of sodium, divide 25 grams by 23 grams per mole. The answer is 1.09 moles

Answer:

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