Acids, Bases, and the pH scale

Front

What is the pH scale range?

Back

The pH scale ranges from 0 to 14.

Front

What color do acids turn when mixed with cabbage juice?

Back

Acids turn dark red, magenta, or bright pink when mixed with cabbage juice.

Front

What is the pH of a solution that is considered acidic?

Back

A solution with a pH less than 7 is considered acidic.

Front

Which substance is the most basic (alkaline)?

Back

Bleach is the most basic (alkaline) among the options.

Front

What is the pH value of a neutral solution?

Back

A neutral solution has a pH of 7.

Front

What is an acid?

Back

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

Front

What is a base?

Back

A base is a substance that accepts protons (H+) and has a pH greater than 7.

Front

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

Back

The pH of the solution decreases (becomes more acidic).

Front

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

Back

The pH of the solution increases (becomes more basic).

Front

What is the role of indicators in acid-base chemistry?

Back

Indicators are substances that change color in response to the pH of a solution.