acids and bases

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 the strongest acid?

• 1

• 5

• 3

• 8

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is the strongest base?

• 4

• 14

• 7

• 15

Tags

NGSS.HS-PS1-1

What is the pH of blood?

• 7.0

• 7.4

• 7.8

• 8.0

Tags

NGSS.HS-LS1-3

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

A pH of 8 is how many times more acidic than a pH of 11?

• 3

• 30

• 100

• 1000

What does a base release when placed in water?

• hydroxide ions (OH-)

• hydrogen ions (H+)

• ions

• molecules

Tags

NGSS.MS-PS1-2