Unit 4: Chemical Equations and Reactions Review

Front

What is gold?

Back

Element

Front

What happens when glass breaks?

Back

It is a Physical change.

Front

What are two or more atoms chemically bonded together called?

Back

Molecule

Front

What term represents the particle formed when 2 or more atoms come together as one?

Back

Molecules

Front

Is rust on an iron bar an example of a chemical change?

Back

True

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a reactant?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product?

Back

A substance that is formed as a result of a chemical reaction.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.