COMBO Acids, Bases, pH, with Physical/Chemical Changes

Front

What is a precipitate?

Back

A solid that forms and separates from a liquid mixture when two liquids combine.

Front

What is an example of a physical change?

Back

Hammering wood together to build a house.

Front

What happens when gatorade powder dissolves in water?

Back

It is a physical change because the powder dissolves but does not change its chemical structure.

Front

What is the pH of drain cleaner?

Back

13, indicating it is a strong base.

Front

What type of change occurs when metal rusts?

Back

A chemical change.

Front

What is an acid?

Back

A substance that donates protons (H+) in a solution and has a pH less than 7.

Front

What is a base?

Back

A substance that accepts protons (H+) in a solution and has a pH greater than 7.

Front

What does pH measure?

Back

The acidity or basicity of a solution.

Front

What is a neutral solution?

Back

A solution with a pH of 7, indicating it is neither acidic nor basic.

Front

What is an example of a chemical change?

Back

Burning wood, which produces ash and smoke.