Molecules

Front

What is a recipe for a chemical substance called?

Back

Chemical formula.

Front

Why is oxygen gas not considered a compound?

Back

It only consists of 1 element.

Front

Give an example of an element.

Back

Hydrogen.

Front

What is a compound?

Back

A molecule that contains at least 2 different elements.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is the smallest unit of an element?

Back

Atom.

Front

What is the difference between an element and a compound?

Back

An element consists of only one type of atom, while a compound consists of two or more different types of atoms.

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 a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What is the chemical formula for water?

Back

H2O.