Which of the following statements is true concerning acids and bases?

• acids and bases do not react with each other

• acids mixed with bases neutralize each other

• acids mixed with bases make stronger bases

• acids mixed with bases make stronger acids

True or false: a neutral solution has equal amounts of H⁺ and OH^-.

• True

• False

Which is true?

• pH of less than 7 is basic; pH of more than 7 is acidic

• pH of less than 7 is acidic; pH of more than 7 is basic

NaOH may be found in drain cleaners and as a component of soaps. Is NaOH an acid or a base?

• Acid

• Base

• Neither (Neutral)

Tags

NGSS.HS-PS1-1

Stronger acids have a pH closer to...

• 7

• 0

• 14

• 9

Weaker bases have a pH closer to...

• 8

• 0

• 14

• 4

The pH scale is a range from:

• 1-7

• 0-14

• 1-5

• 1-14

Which property is not associated with acids?

• Sour taste

• strong acids can burn you

• turns litmus paper blue

• reacts with metals

You test a solution with red litmus paper, and the paper turns blue. The solution is ______.

• neutral

• an acid

• a base

• an acid & a base

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

• indicator
• neutralizer
• corrosive
• electricity

Tags

NGSS.MS-PS1-2