Water Acids Bases pH

What does pH measure?

• the amount of hydrogen (H⁺) ions

• the amount of hydroxide (OH^-) ions

• amount of water

• all of the above

Tags

NGSS.MS-PS1-1

Which of the following is the strongest acid?

• 1

• 5

• 3

• 8

Which of the following is the strongest base?

• 4

• 14

• 7

• 15

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

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

• 2

• 20

• 10

• 100

The pH scale is a range from:

• 1-7
• 0-14
• 1-5
• 1-20

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

A(n) _______ is a substance with a pH greater than 7.

• Base
• Acid
• Buffer
• Water