AP Chemistry Unit 8 Acids and Bases

Which of the following is a base?

• orange juice

• water

• vinegar

• dishwashing detergent

Pure water has a pH of 7. Pure water _______.

• is a base

• is a neutral substance

• could be either an acid or a base

• is an acid

indicator that turns red in the presence of an acid and blue in the presence of a base

• solvent

• solute

• litmus

• temperature

What happens immediately after you dissolve acid in water?

• Positively charged hydrogen atoms are released.

• Hydronium ions are released.

• Negatively charged hydrogen atoms are released.

• Neutrally charged hydrogen atoms are released.

Tags

NGSS.MS-PS1-2

A hydronium ion is like a _____molecule with an extra hydrogen atom.

• Acid

• Base

• Water

• Vinegar

What do acids and bases have in common?

• They both eat away at metal.

• They can both conduct electricity.

• They both have a sour taste.

• They both form positively charged ions when dissolved in water.

This ion is responsible for the properties of bases

• Sodium ion

• Hydrogen ion

• Hydroxide ion

• Oxide ion

Neutral solutions have a pH of:

• 0

• 1

• 7

• 14

A sour taste is a characteristic of:

• acids

• bases

• neutral

• pH scale

What is being donated/accepted between conjugate acid-base pairs?

• a hydrogen (H+) ion

• a hydroxide (OH-) ion

• water

• a neutron