Acids, Bases and Salt - Ch 10 - PS

The presence of a(n) __________ makes an apple taste tart.

• acid

• base

• salt

• worm

Which of the following represents a hydronium ion?

• H⁺

• OH^-

• H₂O

• H₃O⁺

Which type of solutions conduct electricity?

a. acidic c. both A and B

b. basic d. neither A nor B

• acidic

• basic

• both A and B

• neither A nor B

Which of the following represents a hydroxide ion?

• H⁺

• OH^-

• H₂O

• H₃O⁺

Strong acids produce __________ than weak acids do.

• fewer hydrogen ions

• fewer hydroxide ions

• more hydrogen ions

• more hydroxide ions

Weak bases produce __________ than strong bases do.

• fewer hydrogen ions

• fewer hydroxide ions

• more hydrogen ions

• more hydroxide ions

Which of the following is not true concerning the pH scale?

• In a solution, the lower the pH value, the fewer hydronium ions present.

• The pH scale gauges how acidic a substance is.

• The pH value is a unitless number between 0 and 14.

• The pH value is determined by the amount of hydronium ions that are produced in a solution.

A neutral solution has a pH value of __________.

• 0

• 7

• 8

• 10

Which pH value is the most basic?

• 1.6

• 7.0

• 8.2

• 12.1

Ocean water is slightly basic. Which pH value would most likely represent the pH of ocean water?

• 1.1

• 6.9

• 8.1

• 12.9