Acids and Bases

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a solution is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and has a pH less than 7.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

Front

What is the pH of a strong acid?

Back

The pH of a strong acid is closer to 0.

Front

What is the pH of a strong base?

Back

The pH of a strong base is closer to 14.

Front

What is the pH of pure water?

Back

The pH of pure water is 7, which is neutral.

Front

What does it mean if a solution has a pH of 8?

Back

A solution with a pH of 8 is considered a weak base.

Front

What is the universal solvent?

Back

Water is called the universal solvent because it can dissolve many substances.

Front

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

Back

The pH of the solution decreases, becoming more acidic.

Front

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

Back

The pH of the solution increases, becoming more basic.