Acids and Bases

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

• blue
• black
• green
• red

Tags

NGSS.MS-PS1-2

Bases are located where on the pH scale?

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

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

• acid

• base

• neutral

• solute

Which one of the following is an example of a base?

• orange juice
• dish soap
• vinegar
• lemons

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

• indicator
• neutralizer
• corrosive
• electricity

Tags

NGSS.MS-PS1-2

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

According to the pH scale, which item is more acidic than lemons?

• battery

• vinegar

• milk

• blood

Tags

NGSS.MS-PS1-2

A pH level of 7 indicates

• acid

• base

• neutral

• none of the following

The pH scale is a range from:

• 1-7

• 0-14

• 1-5

• 1-14