Counting Atoms

Front

What is the chemical formula for water?

Back

H₂O

Front

How many atoms are in one molecule of water (H₂O)?

Back

3 (2 Hydrogen + 1 Oxygen)

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in one molecule.

Front

How many hydrogen atoms are in one molecule of water (H₂O)?

Back

2

Front

What is the chemical formula for glucose?

Back

C₆H₁₂O₆

Front

How many total atoms are in one molecule of glucose (C₆H₁₂O₆)?

Back

24 (6 Carbon + 12 Hydrogen + 6 Oxygen)

Front

How many carbon atoms are in one molecule of glucose (C₆H₁₂O₆)?

Back

6

Front

What is the chemical formula for sodium oxide?

Back

Na₂O

Front

How many oxygen atoms are in one molecule of sodium oxide (Na₂O)?

Back

1

Front

How many sodium atoms are in one molecule of sodium oxide (Na₂O)?

Back

2