AP Chemistry Acids and Bases

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

Tags

NGSS.MS-PS1-5

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.

What does pH measure?

• the amount of hydrogen (H⁺) ions

• the amount of hydroxide (OH^-) ions

• amount of water

• all of the above

Which of the following is a characteristic of a base?

• bitter

• sour

• corrosive

• releases hydrogen ions in water

Which of the following is a characteristic of an acid?

• bitter

• slippery

• sour

• releases hydroxide ions in water

What is a mixture of chemicals that react with a base/acid to keep pH in a particular range?

• catalyst

• enzyme

• water

• buffer

A pH of 3 is how many times more acidic than a pH of 5?

• 2

• 20

• 10

• 100

What does a base release when placed in water?

• hydroxide ions (OH-)

• hydrogen ions (H+)

• ions

• molecules

What does an acid release when placed in water?

• hydroxide ions (OH-)

• hydrogen ions (H+)

• ions

• nothing