Chemistry

A process where substances (reactants) change into different substances (products) with different properties.

The starting substances that undergo change during a chemical reaction.

The substances that are formed as a result of a chemical reaction.

In a chemical reaction, mass is neither created nor destroyed; it remains constant.

Dissolving sugar in water.

Burning wood.

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

A chemical reaction that occurs when a substance reacts with oxygen, producing heat and light.

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

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