Acids and Bases

What is the pH range of an acid?

• 4-6

• 1-7

• 1-6

• 8-14

What would happen to blue litmus paper if it came into contact with an acid?

• It would turn red

• It would turn green

• It would stay blue

• It would turn pink

Which of the following pH values would be the strongest acid?

• 1

• 3

• 4

• 6

Which of the following pH values would be the weakest acid?

• 1

• 3

• 5

• 6

Which of the following chemical formulas is NOT an acid?

• HBr

• HF

• HCl

• LiOH

What would happen to red litmus paper when it encounters a base?

• It turns blue

• It stays red

• It turns purple

• It turns green

HF is...

• an acid

• a base

• a salt

• an ionic compound

KOH is ...

• an acid

• a base

• a salt

• an ionic compound

What would be considered the weakest base? 

• 8
• 14
• 7

• 11

The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?

• 3
• 9
• 7
• 5