Acids and Bases

Bases have a pH of

• 7

• Less than 7

• More than 7

Neutralization is the process of an acid and a base reacting to form what? Select all that apply

• An ionic salt

• Hydronium ions

• NaCl

• Water

What is the formula for nitrous acid?

• HNO₂

• H₃N

• HNO₃

• HNO

What is the formula for hydrosulfuric acid

• H₂S

• H₂SO₂

• H₂SO3

• H₂SO₄

An arrhenius base

• produces hydroxide ions in a solution

• is a proton donor

• produces hydrogen ions in a solution

• is a proton acceptor

An arrhenius acid

• produces hydroxide ions in a solution

• is a proton donor

• produces hydrogen ions in a solution

• is a proton acceptor

Which of these pH values represent an acid?

• 4

• 8

• 10

• 12

Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beaker

• is a base.
• has a neutral pH.
  
• is an acid.
• does not have a pH.

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
• 9
• 7
• 5

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