MCAS Review - Atoms, Elements, Compounds, Mixture (mostly vocab)

Front

All matter is made of...

Back

Atoms.

Front

Center of every atom?

Back

Nucleus

Front

What forms when two atoms combine chemically?

Back

A molecule

Front

Cannot be broken down into simpler substances:

Back

An element.

Front

Most like a recipe?

Back

A chemical formula.

Front

Formation of a compound requires:

Back

A chemical reaction.

Front

Hydrogen (H) is best described as:

Back

Hydrogen is an element made of only one kind of atom.

Front

Oxygen (O) is classified as

Back

a pure substance

Front

C and H are pure substances, each made of one type of atom. They combine to form methane (CH4).

Back

Carbon and hydrogen are elements; methane is a compound.

Front

A compound is...

Back

A substance formed by the chemical reaction of two or more elements.