Acids, Bases, and the pH scale

A substance that is 3 on the pH scale would be a(n):

• acid

• base

• neutral

• solute

A substance that changes color when mixed with an acid or base is a(n) ___.

• indicator
• neutralizer
• corrosive
• electricity

What color does litmus paper turn in the presence of an acid?

• blue
• black
• green
• red

Bases are located where on the pH scale?

• any number can be a base
• below 7
• above 7
• number 7 is a base

Bleach and oven cleaner are:

• strong acids
• weak acids
• strong bases
• weak bases

Which of the following is NOT a characteristic of an acid?

• sour taste
• corrosive
• it feels slippery
• it can burn the skin

A substance that is a 10 on the pH scale would be a(n) ____.

• acid
• neutral
• base
• indicator

At what location on the pH scale can you find acids?

• number 7 on the pH scale is acidic
• below 7
• above 7
• you can find acids all throughout the scale

Which of the following is neutral?

• milk
• eggs
• gummy worms
• pure water

Taste bitter

• acids

• bases

• neutral

• pH paper