Acids & Bases 1

Select the following responses which apply when water is added to a solution of hydrochloric acid:

• the pH increases

• the pH decreases

• the concentration of hydrogen ions increases

• the concentration of hydroxide ions increases

Select the following responses which apply when water is added to a solution of calcium hydroxide:

• the pH increases

• the pH decreases

• the concentration of hydrogen ions increases

• the concentration of hydroxide ions increases

Select the following responses which apply when water is added to a solution of ammonia:

• the pH increases

• the pH decreases

• the concentration of hydrogen ions increases

• the concentration of hydroxide ions increases

Select the following responses which apply when water is added to a solution of citric acid:

• the pH increases

• the pH decreases

• the concentration of hydrogen ions increases

• the concentration of hydroxide ions increases

Select the following responses which apply when water is added to a solution of vinegar:

• the pH increases

• the pH decreases

• the concentration of hydrogen ions increases

• the concentration of hydroxide ions increases

Select the following responses which apply when water is added to a solution of bleach:

• the pH increases

• the pH decreases

• the concentration of hydrogen ions increases

• the concentration of hydroxide ions increases

A neutral solution contains…

• An equal number of hydrogen and hydroxide ions.

• A greater concentration of hydrogen ions than hydroxide ions.

• Neither hydrogen nor hydroxide ions.

• A greater concentration of hydroxide ions than hydrogen ions.

Soaps have a basic pH. Suggest a reasonable pH value for soap.

• 2

• 7

• 9

• 5

• 14

Which of the following compounds is not like the others?

• HNO₃

• H₂SO₄

• HCl

• H₃N

Which of the following compounds is not like the others?

• KOH

• Ca(OH)₂

• NaOH

• HNO₃