Acids and Bases

Front

What is a strong acid?

Back

A strong acid is an acid that completely dissociates in water, resulting in a low pH value, typically around 1 to 3.

Front

What is a mild acid?

Back

A mild acid is an acid that partially dissociates in water, resulting in a higher pH value than strong acids, typically around 4 to 6.

Front

What is the pH scale?

Back

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

Front

What does pH stand for?

Back

pH stands for 'Potential of Hydrogen'.

Front

What happens to blue litmus paper in an acidic solution?

Back

Blue litmus paper turns red in an acidic solution.

Front

What happens to red litmus paper in a basic solution?

Back

Red litmus paper turns blue in a basic solution.

Front

What is an example of a strong acid?

Back

An example of a strong acid is hydrochloric acid (HCl), which has a pH close to 1.

Front

What is an example of a mild acid?

Back

An example of a mild acid is acetic acid, found in vinegar, which has a pH around 5.

Front

What is a base?

Back

A base is a substance that can accept hydrogen ions (H+) or donate electron pairs, resulting in 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.