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- 1. Multiple Choice
The chemical symbol for carbon
C
H
O
Na
- 2. Multiple Choice
The chemical symbol for oxygen.
C
H
O
Na
- 3. Multiple Choice
The chemical symbol for hydrogen.
C
H
O
Na
- 4. Multiple Choice
The chemical symbol for sodium.
C
H
O
Na
- 5. Multiple Choice
The chemical symbol for chlorine.
C
Cl
Fe
Pb
- 6. Multiple Choice
The chemical symbol for nitrogen.
N
Cl
Fe
Pb
- 7. Multiple Choice
The chemical formula for water.
H
O
H2
H2O
- 8. Multiple Choice
The chemical formula for hydrogen gas.
H
O
H2
H2O
- 9. Multiple Choice
The chemical formula for carbon dioxide.
C
O2
H2O
CO2
- 10. Multiple Choice
The chemical formula for ammonia.
ClO
NH3
H2O
CO2
- 11. Multiple Choice
How many carbon atoms are present? C2 + O2 ⇢ CO2
0
1
2
3
- 12. Multiple Choice
How many oxygen atoms are present? C2 + O2 ⇢ CO2
1
2
3
4
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