Acids and Bases

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 or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

Front

What is the pH scale?

Back

The pH scale measures the acidity or basicity of a solution, ranging from 0 (strongly acidic) to 14 (strongly basic), with 7 being neutral.

Front

What happens to blue litmus paper in an acid?

Back

Blue litmus paper turns red when placed in an acid.

Front

What happens to red litmus paper in a base?

Back

Red litmus paper turns blue when placed in a base.

Front

What is the characteristic taste of acids?

Back

Acids typically have a sour taste.

Front

What is the characteristic taste of bases?

Back

Bases typically have a bitter taste.

Front

What is a neutral solution?

Back

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

Front

What is the formula for hydrochloric acid?

Back

The formula for hydrochloric acid is HCl.

Front

What is the formula for sodium hydroxide?

Back

The formula for sodium hydroxide is NaOH, which is a base.