(Savvas 8.4) Strength of Acids and Bases Quiz

What is the name of the number scale chemists use to describe the concentration of hydronium ions in a solution?

• pH scale

• Richter scale

• Celsius scale

• Kelvin scale

The typical pH scale that is represented in textbook ranges from __________ to __________.

• 0 to 7

• 0 to 14

• 1 to 10

• 1 to 7

Is the following sentence true or false? The higher the pH value of a solution, the greater the H3O+ ion concentration is.

• True

• False

If you add acid to pure water, the concentration of H3O+ __________ and the concentration of OH __________.

• increases, decreases

• decreases, increases

• remains the same, remains the same

• decreases, decreases

Which of the following is a characteristic of a strong acid?

• High pH

• Complete ionization.

• Neutral pH

• pH of 7

Which of the following is a characteristic of a strong base?

• Complete Ionization

• Low pH

• Neutral pH

• pH of 7

What happens to the pH of a solution when a base is added to it?

• The pH decreases

• The pH increases

• The pH remains the same

• The pH becomes neutral

Which ion concentration increases when an acid is added to water?

• H2O

• OH-

• H3O+

• Na+

Choose the option(s) that identify a strong acid.

• HCl

• Ca(OH)₂

• H₂O

• HNO₃

When dissolved in water, sodium hydroxide almost completely dissociates into _________ ions.

• sodium and hydroxide

• sodium and chloride

• hydrogen and oxygen

• potassium and hydroxide