Counting Atoms

Front

How many atoms of oxygen are in the compound 2Ca(OH)2?

Back

4

Front

What is the chemical formula for hydrogen fluoride?

Back

HF

Front

How many atoms of iron are in the compound Fe2O3?

Back

2

Front

Define a molecule.

Back

Two or more atoms held together by covalent bonds.

Front

How many atoms of carbon are in the compound C3H8?

Back

3

Front

What is the chemical formula for water?

Back

H2O

Front

How many total atoms are in the compound 2NaCl?

Back

4 (2 Na + 2 Cl)

Front

What is the term for a substance made of two or more different elements?

Back

Compound

Front

How many hydrogen atoms are in the compound C2H6?

Back

6

Front

What is the chemical formula for carbon dioxide?

Back

CO2