Oxidation-Reduction — Cumulative exam

Question 1

Which of these correctly defines the pH of a solution?

Revolt · Accepted Answer

the negative log of the hydronium ion concentration

Question 2

Which can have either a positive charge or a negative charge when they are released during radioactive decay?

Revolt · Accepted Answer

beta particles

Question 3

What is the molar mass of Al2(SO4)3?

Revolt · Accepted Answer

342.17 g/mol

Question 4

Which proportionality applies to Avogadro’s law?

Revolt · Accepted Answer

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Question 5

Which statement best describes a mole?

Revolt · Accepted Answer

It contains 6.02 1023 particles of a given substance.

Question 6

What would be the greatest difference in using an open ceramic coffee mug rather than an insulated mug with a lid as a calorimeter?

Revolt · Accepted Answer

exchange of energy with the surroundings

Question 7

Five milliliters (mL) of alcohol is poured into a beaker that contains 65 mL of 2% saltwater. Which are the solutes in the new solution?

Revolt · Accepted Answer

alcohol and salt

Question 8

Which form of energy is directly related to the measure of the average kinetic energy of the particles in a substance?

Revolt · Accepted Answer

thermal energy

Question 9

Which is a characteristic of a solution?

Revolt · Accepted Answer

Its particles are evenly distributed.

Question 10

Which equation agrees with the ideal gas law?

Revolt · Accepted Answer

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Oxidation-Reduction — Cumulative exam Answers