Acids and Bases

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

• acids and bases don't 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

Tags

NGSS.MS-PS1-2

True or false: bases are sometimes called alkaline.

• True

• False

Neutral solutions have a pH of:

• 0

• 1

• 7

• 14

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

What would be considered the weakest base? 

• 8
• 14
• 7.8
• 11.6

Pure water has a pH of 7. Pure water _______.

• is a base
• is a neutral substance
• could be either an acid or a base
• is an acid

Ammonia has a pH of 12.  Ammonia is __________.

• an acid
• a base
• an element
• a metal

When dissolved in water, bases produce:

• acids
• salts
• hydrogen ions
• hydroxide ions

Ranging from 0 to 14, a pH value indicates how acidic or basic a solution is.  Which of these pH values would be a strong acid?

• 2
• 6
• 9
• 13