Acids, Bases, and pH Concepts

What are substances that release hydrogen ions (H+) when dissolved in water?

• Bases

• Salts

• Acids

• Solutions

What are substances that release hydroxide ions (OH-) when dissolved in water?

• Acids

• Salts

• Bases

• Neutral solutions

What is a measure of the acidity or basicity of a solution?

• Litmus paper

• Solubility

• pH scale

• Concentration

What is a type of pH paper used to test the acidity or basicity of a solution?

• Filter paper

• Chromatography paper

• Litmus paper

• pH meter

What color does red litmus paper turn when dipped into a basic solution?

• Red

• Blue

• Yellow

• No change

What color does blue litmus paper turn when dipped into an acidic solution?

• Blue

• Red

• Green

• No change

A solution with a pH of 9 would be considered:

• Acidic

• Neutral

• Basic

• Corrosive

What happens to litmus paper when it is dipped into a neutral solution?

• It turns red

• It turns blue

• It shows no color change

• It dissolves

What pH value indicates a neutral solution?

• 0

• 7

• 14

• 1

Which of the following is an example of an acid?

• Baking soda

• Lemon juice

• Ammonia

• Bleach