Acids and Bases

Acids react with

• water to produce bases and salts
• salts to produce bases and water
• neither bases, salts nor water
• bases to produce salts and water

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

HF is...

• an acid

• a base

• a salt

• an ionic compound

KOH is ...

• an acid

• a base

• a salt

• an ionic compound

The pH of a solution is 2.0. What is the [OH^-] concentration?

• 1x10^-12M

• 12 M

• 1x10^-2M

• 2 M

Which of the following statements is correct?

• Blue litmus paper turns red when placed in a base.
• Red litmus paper turns blue when placed in a base.
• Blue litmus paper stays blue when placed in an acid.
• Red litmus paper stays red when placed in a base.

What is the pH of a solution where the [H+] is 1.0 x 10^-11?

• 11

• 13

• 14

• 1

What is the pOH of a 1 x 10^-8 M solution of HNO₃?

• 8

• 6

• 7

• 9

A neutralization reaction will (almost) always produce...

• water & salt
• water
• salt
• water & carbon

What is considered to be in the middle of the pH scale

• acidic

• neutral

• basic

• indicator