Identify Acids and Bases

If an acid has a pH of 1.4 will it be strong or weak?

• strong

• weak

NaOH may be found in drain cleaners and as a component of soaps. Is NaOH an acid or a base?

• Acid

• Base

• Neither (Neutral)

At what pH is a solution neutral?

• 0

• 7

• 14

Consider the following reaction:

HCl + KOH --> H2O + KCl

Identify the acid in the reaction above.

• HCl

• H2O

• KOH

• KCl

An increase in the amount of hydrogen ions in a solution ____ the pH.

• raises

• lowers

• does not affect

• doubles

Which is are characteristics of acids?

• Turns litmus paper red

• Turns litmus paper blue

Which is are characteristics of bases?

• Turns litmus paper red

• Turns litmus paper blue

Human blood has a pH of between 7.38 and 7.42. This means that the blood is ________.

• very acidic

• slightly acidic

• very basic

• slightly basic

An increase in the amount of hydroxide ions in a solution ____ the pH.

• raises

• lowers

• does not effect

• doubles

Base has a pH range of ______________.

• 0-6.9

• 7.1-14

• 0-14