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

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

Acids and bases can combine to create water and salts.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Neutral solutions have a pH of

• pH of 2

• pH of 0

• pH of 7

• A neutral solution does not have a pH

An acid’s pH is between :

• 0 to 6

• 7

• 8-14

• 6-14

Vinegar is an example of:

• Strong Acid

• Weak Acid

• Strong Base

• Weak Base

In a test of pH levels, a baking soda has a pH of 9 and bleach has a pH of 12. What is true about there relationship?

• Both of the solution are Bases

• Both of the solution are Acids

• The Baking soda is an acid and the Bleach is a base

• The baking soda is a base and the Bleach is an Acid.