Acids and Bases

Front

What is the pH scale?

Back

The pH scale measures how acidic or basic a substance 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 characteristic taste of acids?

Back

Acids typically taste sour.

Front

What color does litmus paper turn in the presence of an acid?

Back

Litmus paper turns red in the presence of an acid.

Front

What color does litmus paper turn in the presence of a base?

Back

Litmus paper turns blue in the presence of a base.

Front

What is the strongest acid on the pH scale?

Back

The strongest acid has a pH close to 0.

Front

What is the strongest base on the pH scale?

Back

The strongest base has a pH close to 14.

Front

What is vinegar's pH level?

Back

Vinegar typically has a pH level of around 2-3, making it acidic.

Front

What is baking soda's pH level?

Back

Baking soda typically has a pH level of around 9, making it basic.