Acids and Bases

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

Which is the stronger acid?

• pH 1
• pH 4
• pH 8
• pH 13

Which of the following is most likely to be basic:

• Lemon juice
• Vinegar
• Laundry detergent
• Coke

When dissolved in water, acids produce:

• bases
• salts
• hydrogen ions
• hydroxide ions

Tags

NGSS.MS-PS1-2

The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?

• 3

• 7

• 9

• 5

pH is the measure of the concentration of ______.

• Acids

• H+ ion

• OH- ion

• Base

If a solution is basic which ion will be more present?

• H+

• K+

• OH-

• H-

Stronger acids have a pH closer to...

• 7

• 14

• 0

• 9

Weaker bases have a pH closer to...

• 8

• 14

• 0

• 4

Which of these pH values represent an acid?

• 4

• 8

• 10

• 12