Chemistry » Page 104

Chemistry

Hatfield

If the absolute temperature of a gas is quadrupled, what happens to the root-mean-square speed of the molecules?

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Chemistry

Michelle

Part C

Why are dichotomous keys useful in classifying a new species?

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Chemistry

Mackenzie Osborne

When 200. ml of water are added to 100. ml of 12% kcl solution the final concentration of kcl is (assume the volumes add.) ?

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Chemistry

Boyd

What's needed to build a neutral atom?

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Chemistry

Nyasia

When forces attracting solvent particles to each other are broken what is provided for a solution.

1. Energy for the solute to precipitate

2. Space for the solute in the solvent

3. Inertia for the solute to move into the solvent

4. Nothing is provided

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Chemistry

Deegan Wang

Describe how to determine the rate law for an overall reaction that involves multiple steps

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Chemistry

Lukas Scott

What happens when human blood contains too many bases?

A. Hydrogen ions from bicarbonate ions react with the bases.

B. Water molecules break down to produce protons to react with the bases.

C. Carbon dioxide molecules react with the bases to form bicarbonate ions.

D. Carbon dioxide molecules react with the bases to form carbonate ions.

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Chemistry

Kian Nicholson

High-purity silicon is obtained using a three-step process. the first step involves heating solid silicon dioxide, sio2, with solid carbon to give solid silicon and carbon monoxide gas. in the second step, solid silicon is converted into liquid silicon tetrachloride, sicl4, by treating it with chlorine gas. in the last step, sicl4 is treated with hydrogen gas to give ultrapure solid silicon and hydrogen chloride gas. part a write balanced chemical equations for the first step involved in this three-step process. express your answer as a chemical equation. identify all of the phases in your answer.

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Chemistry

Easton Castaneda

If an experiment produces 5g but should have made 500 g what is the percent yield

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Chemistry

Rodolfo Buchanan

Satellites orbit Earth in the.

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Chemistry

Gams

In a basic solution

A. concentration of OH - > concentration of H+.

B. concentration of OH - < concentration of H+.

C. concentration of OH - = concentration of H+.

D. concentration of H + > concentration of OH-.

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Chemistry

Miah Hubbard

You have two balloons of equal volume at room temperature and 1 atm pressure. One balloon is filled with He and the other is filled with H2. Which statement is true about the relative number of gas particles in the two balloons?1. The He balloon has approximately half the number of particles, since each particle is only composed of 1 atom. 2. The He balloon has approximately half the number of particles since each particle has about twice the mass of H23. The H2 balloon has approximately half the number of particles since each particle has twice as many atoms. 4. Both balloons have approximately the same number of gas particles.

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Chemistry

Marely Blanchard

Explain in detail what causes tides and give one reason why it is important for humans to monitor tides.

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Chemistry

Sarai Haley

Consider a binary acid, represented as ha, in which one or more ionizable h atoms are bonded to one additional element. ha is not an oxoacid.

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Chemistry

Annalise Beard

How to test whether a vegetable or fruit can conduct electricity?

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