Acids and Bases

pH is used to measure how acidic or basic something is.

• true

• false

If the number of hydrogen ions goes up then:

• the substance becomes neutral

• the substance becomes acidic

• the substance becomes basic

If the number of hydrogen ions goes down then:

• the substance becomes neutral

• the substance becomes acidic

• the substance becomes basic

If something is acidic, the pH number will be:

• from 0 - 6

• 7

• from 8 - 14

Which of these substances is acidic?

• lemon - pH = 2

• eggs - pH = 9

• drain cleaner - pH = 14

• coffee - pH =5

• water - pH = 7

If something is basic, the pH number will be:

• from 0-6

• 7

• from 8-14

Which of these substances is basic?

• water - pH = 7

• vinegar - pH = 3

• bleach - pH - 10

• blood - pH - 8

• milk - pH - 6