Chemistry » Page 14

Chemistry

Shiloh Bass

What is the pH of a solution with a hydronium concentration of 2.88 * 10-2 M?

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Chemistry

Armani Bradshaw

Which of the following characteristics is fixed, or definite, for all states of matter?

volume

shape

mass

energy

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Chemistry

Molly

Describe a change caused by kinetic energy as well as a change caused by potential energy.

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Chemistry

Bethany Carpenter

Which is more concentrated, a solution (1) prepared by dissolving 21.0 g of naf (0.500 mol) in enough water to make 500 ml of solution or a solution (2) prepared by dissolving 10.5 g (0.250 mol) of naf in enough water to make 100 ml of solution?

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Chemistry

Xander Lester

Hi i need hel does any one know what P3N2 means?.-.

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Chemistry

Karli

How does thermal energy transfer when a room is heated by a furnace?

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Chemistry

Greene

De que está echo nuestro sol

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Chemistry

Shayla Kaufman

Several steps are involved in the industrial production of sulfuric acid. One step involves the oxidation of sulfur dioxide gas to form sulfur trioxide gas. A catalyst is used to increase the rate of production of sulfur trioxide gas. In a rigid cylinder with a movable piston, this reaction reaches equilibrium, as represented by the equation below.

2SO2 (g) + O2 (g) 2SO3 (g) + 392 kJ

Explain, in terms of collision theory, why increasing the pressure of the gases in the cylinder increases the rate of the forward reaction.

Determine the amount of heat released by the production of 1.0 mole of SO3 (g).

State, in terms of the concentration of SO3 (g), what occurs when more O2 (g) is added to the reaction at equilibrium.

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Chemistry

Ezra Bright

All energy waves other than the visible light spectrum cannot be seen. true or false

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Chemistry

Lucian Schultz

Describe two important functions for carbon dioxide in the atmosphere.

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Chemistry

Madyson Dunlap

In the chemical reaction: 2 h 2 (g) o2 (g) → 2 h2o (g), with 8 grams of h 2 (2 grams/mole) and 16 grams of o2 (32 grams/mole) and the reaction goes to completion, what is the excess reactant and how much of that would remain

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Chemistry

Camren Lutz

What is the volume of a gold nugget that weighs 2.20 kg? The density of gold is 19.28 g/cc.

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Chemistry

Courtney

Find the percentage composition of carbon in H5C2O

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Chemistry

Rachel Weber

When studying atoms, scientists can ignore the

force between charged particles that make up

the atoms because it is many millions of times smaller than other forces in the atom.

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Chemistry

Nicholas Zavala

How should a stopper be handled after is has been removed from a reagent bottle?

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