Chapter 10

Question 1

Acid

Answer 1

A substance that donates hydrogen ions or accepts electron pairs.

Question 2

Acidic

Answer 2

Said of a solution in which the hydronium-ion concen- tration is higher than the hydroxide-ion concentration.

Question 3

Amphoteric

Answer 3

A description of a substance that can behave as either an acid or a base.

Question 4

Base

Answer 4

A substance that accepts hydrogen ions or donates electron pairs.

Question 5

Basic

Answer 5

Said of a solution in which the hydroxide-ion concentration is higher than the hydronium-ion concentration. Also sometimes called alkaline.

Question 6

Buffer solution

Answer 6

A solution that resists large changes in pH - made from either a weak acid and one of its salts or a weak base and one of its salts.

Question 7

Hydronium ion

Answer 7

A polyatomic ion made by adding a proton (hydrogen ion) to a water molecule.

Question 8

Hydroxide ion

Answer 8

A polyatomic ion made by removing a proton (hydrogen ion) from a water molecule.

Question 9

Neutral

Answer 9

Said of a solution in which the hydronium-ion concentration is equal to the hydroxide-ion concentration.

Question 10

Neutralization

Answer 10

A reaction between an acid and a base. pH A measure of the acidity of a solution - equal to the negative logarithm of the hydronium-ion concentration.

Question 11

Salt

Answer 11

An ionic compound commonly formed from the reaction between an acid and a base.