Count the Atoms
Count Each Element
How many molecules
Coefficient Challenge
Final Formula Challenge
100

How many total atoms are in H₂O?

3 Atoms

100

In H₂O, how many H atoms and O atoms are there?

H = 2, O = 1

100

How many molecules are represented by 2H₂O?

2 molecules

100

How many total atoms are in 2H₂O?

6 total atoms

100

How many molecules and total atoms are represented by 2O₂?

2 molecules; 4 total atoms

200

How many total atoms are in CO₂?

3 atoms

200

In CO₂, how many C atoms and O atoms are there?

C = 1, O = 2

200

How many molecules are represented by 4CO₂?

4 molecules

200

How many total atoms are in 3CO₂?

9 total atoms

200

How many molecules and total atoms are represented by 3H₂O?

3 molecules; 9 total atoms

300

How many total atoms are in NH₃?

4 atoms

300

In Na₂O, how many Na atoms and O atoms are there?

Na = 2, O = 1

300

How many molecules are represented by 3NH₃?

3 molecules

300

How many H atoms are in 4H₂O?

8 H atoms

300

 How many molecules and total atoms are represented by 4CO₂?

4 molecules; 12 total atoms

400

How many total atoms are in CH₄?

5 atoms

400

In H₂SO₄, how many atoms of each element are there?

H = 2, S = 1, O = 4

400

How many molecules are represented by 6CH₄?

6 molecules

400

How many O atoms are in 5CO₂?

10 O atoms

400

How many molecules, H atoms, and O atoms are represented by 5H₂O?

5 molecules; 10 H atoms; 5 O atoms

500

How many total atoms are in C₆H₁₂O₆?

24 atoms

500

In C₆H₁₂O₆, how many atoms of each element are there?

C = 6, H = 12, O = 6

500

How many molecules are represented by 10H₂O?

10 molecules

500

How many total atoms are in 3H₂SO₄?

21 total atoms

500

How many molecules and how many atoms of each element are represented by 2C₆H₁₂O₆?

2 molecules; 12 C atoms, 24 H atoms, 12 O atoms