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 (H+) 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 how acidic or basic a solution is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What happens to litmus paper in an acid?

Back

Litmus paper turns red in an acidic solution.

Front

What happens to litmus paper in a base?

Back

Litmus paper turns blue in a basic solution.

Front

What is the pH of pure water?

Back

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

Front

What is a common example of a weak acid?

Back

Vinegar (acetic acid) is a common example of a weak acid.

Front

What is a common example of a strong acid?

Back

Hydrochloric acid (HCl) is a common example of a strong acid.

Front

What is a common example of a weak base?

Back

Baking soda (sodium bicarbonate) is a common example of a weak base.

Front

What is a common example of a strong base?

Back

Sodium hydroxide (NaOH) is a common example of a strong base.

Tags

NGSS.HS-PS1-5