Unit 1 - Part 2: Lesson 2 - Property Changes Chemical Reactions

Front

What happens to atoms during a chemical reaction?

Back

Atoms are rearranged.

Front

What is an example of a compound?

Back

CO2

Front

What is a correct description of a chemical change?

Back

The change results in the formation of new substances.

Front

What term describes the starting substances in a chemical equation?

Back

Reactants

Front

What is a balanced chemical equation?

Back

When there is the same number of atoms of each element on both sides of the equation.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What are products in a chemical reaction?

Back

Substances formed as a result of a chemical reaction.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.