Chemical Reactions Unit Review Amplify

Front

What is a molecule?

Back

A molecule is made of more than one atom.

Front

How do the properties of two gas samples with the same types of atoms compare?

Back

The other properties will likely be different because the repeating groups of atoms that make up the two samples have different numbers of atoms.

Front

What is a product in chemical reactions?

Back

The substance(s) that are created after a chemical reaction.

Front

What is an atom?

Back

An atom is the basic unit of matter, such as Hydrogen (H) and Oxygen (O).

Front

What is the melting point of a substance?

Back

The temperature at which a substance changes from solid to liquid.

Front

What happens during a chemical reaction?

Back

Atoms rearrange to form new substances.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance, while a chemical change results in the formation of new substances.

Front

What is a reactant in a chemical reaction?

Back

The substance(s) that undergo a change during a chemical reaction.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.