Acids and Bases Basics

Front

What does the pH scale measure?

Back

The pH scale measures the concentration of H₃O⁺ ions in a solution.

Front

What does a pH less than 7 indicate?

Back

A pH less than 7 indicates an acidic solution.

Front

Which graph represents a neutral solution?

Back

Graph C represents a neutral solution.

Front

Which ion is more prevalent in an acidic solution?

Back

H₃O⁺ ions are more prevalent in an acidic solution.

Front

Which of the following diagrams represents a basic solution?

Back

Diagram B represents a basic solution.

Front

What is an acid?

Back

An acid is a substance that donates protons (H⁺ ions) in a solution.

Front

What is a base?

Back

A base is a substance that accepts protons (H⁺ ions) or donates hydroxide ions (OH⁻) in a solution.

Front

What is the range of the pH scale?

Back

The pH scale ranges from 0 to 14.

Front

What pH value is considered neutral?

Back

A pH value of 7 is considered neutral.

Front

What happens to the pH of a solution when an acid is added?

Back

The pH of the solution decreases when an acid is added.