Acid and Base Unit Test

A substance that changes color when exposed to acid or base solutions is called a(n) .

• salt

• indicator

• molecule

• ion

You can determine the concentration of acids or bases in a solution by using

• the pH scale

• a salt

• the periodic table of elements

• a particle accelerator

a liquid with a pH of 10 is ________

• a base

• an acid

• neutral

• none of the above

Which item is NOT an acid?

• mustard

• sugar

• lemon juice

• tomato juice

If indicator paper is red, the pH of the substance being tested is acidic.

• True

• False

Acids will often taste:

• Bitter

• Sour

Bases will often taste:

• Bitter

• Sour

Bases can often feel:

• fuzzy

• rough

• moldy

• slippery

Which could be the pH of an acidic substance?

• 7

• 11

• 3

• 13

Which of the following is NOT a base?

• Soap

• SOS cleaner

• Tums

• Vinegar