Understanding Compounds and Molecules

Front

Atoms are combined to make _____

Back

molecules

Front

Carbon dioxide is formed when two oxygen atoms chemically combine with a carbon atom. Which term best describes carbon dioxide?

Back

compound

Front

How many Hydrogen atoms are in Water (H2O)?

Back

2

Front

Which substance is a compound? Neon (Ne), Oxygen (O2), Carbon Dioxide (CO2), Nitrogen (N2)

Back

Carbon Dioxide (CO2)

Front

Carbon dioxide (CO2) contains how many atoms of oxygen?

Back

2

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded.

Front

What is the chemical formula for water?

Back

H2O

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms.

Front

What is the smallest unit of a compound?

Back

A molecule.