Joanne dips some neutral litmus paper into a substance and it turns blue. The substance has a slippery feel and tastes chalky. This substance is most likely __________.

• an acid
• a base
• neutral
• a compound

A solution has a pH of 10. This solution can be described as ______.

• neutral
• an acid
• a base
• a salt

Matthew is testing a substance. It tastes sour, is corrosive, and turns neutral litmus paper red.  What would be the most likely pH of this substance?

• 7
• 10
• 4
• 8

Tags

NGSS.MS-PS1-2

A substance has a pH greater than water (pH of 7) but less than bleach (ph of 13).   That means this substance is _______.

• an acid
• a base
• neutral
• a salt

What is a property of bases?

• Slippery touch
• Sour taste
• Ability to dissolve metal
• Ability to form hydronium ions

Which chemical is a proton donor?

• Acid

• Base

Which chemical is a proton acceptor?

• Acid

• Base

Which chemical tastes bitter?

• Acid

• Base

Which chemical reacts with most metals?

• Acid

• Base

Pure water is _______ on the pH scale.

• Acid
• Base
• Neutral