pH, ACIDS AND BASES

Front

What is pH?

Back

pH is a scale used to measure 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 pure water?

Back

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

Front

What happens to litmus paper in an acidic solution?

Back

Litmus paper turns red in an acidic solution.

Front

What happens to litmus paper in a basic solution?

Back

Litmus paper turns blue in a basic solution.

Front

What is the strongest acid on the pH scale?

Back

The strongest acid has a pH of 0 or 1.

Front

What is the strongest base on the pH scale?

Back

The strongest base has a pH of 13 or 14.

Front

What is the significance of a pH of 7?

Back

A pH of 7 indicates a neutral solution, meaning it is neither acidic nor basic.

Front

What common household item is acidic?

Back

Orange juice is a common household item that is acidic.