Compounds & Counting Atoms Review

Front

What cannot be broken down into other substances?

Back

Element

Front

How many Oxygen atoms are in Al₂(SO₄)₃?

Back

12

Front

Which of the following represents an element? H₂O, H, NaCl, CaCO₃

Back

H

Front

Which of the following is not a compound? HCl, Cl, NaCl, CO₂

Back

Cl

Front

Contains two or more atoms combined: Elements, Compounds, Mixtures

Back

Compounds

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

How many total atoms are in Al₂(SO₄)₃?

Back

14 (2 Al + 3 S + 12 O)

Front

What is the chemical formula for water?

Back

H₂O