Elements and Compounds

Front

What is a molecule?

Back

A molecule is two or more atoms chemically combined.

Front

What is a compound?

Back

A compound is a chemical combination of two or more elements.

Front

What does a subscript in a chemical formula indicate?

Back

A subscript indicates the number of atoms of an element in a compound.

Front

What is a diatomic molecule?

Back

A diatomic molecule consists of two atoms of the same element bonded together.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by a chemical reaction.

Front

What is the difference between an element and a compound?

Back

An element is a single type of atom, while a compound is made up of two or more different types of atoms chemically bonded.

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing information about the atoms that constitute a particular chemical compound.

Front

What is a coefficient in a chemical equation?

Back

A coefficient is a number placed in front of a chemical formula to indicate how many molecules or atoms are involved.

Front

Can a compound be broken down into simpler substances?

Back

Yes, a compound can be broken down into simpler substances through chemical reactions.

Front

What is the smallest unit of a compound?

Back

The smallest unit of a compound is a molecule.