1. Workbook 1
Pages

2. Chemical Equation 2 CuO + C → CO2 + 2 Cu Reactants Products 1) Cu =
Element(s)
Not balanced
Balanced, or not?
Reactants
Products 1)
2 CuO + C → CO Cu
Cu =
Cu =
O =
O =
C =
C =

3. If it helps, draw the substances
Chemical Equation
Element(s)
Not balanced
Balanced, or not?
Reactants
Products 1)
2 CuO + C → CO Cu
If it helps, draw the substances Cu O C 2
Cu =
Cu = 2
O =
O = 1
C =
C =

4. 2 2 2 2 1 1 Chemical Equation 2 CuO + C → CO2 + 2 Cu Reactants
Element(s)
Not balanced
Balanced, or not?
Reactants
Products Cu O C 1)
2 CuO + C → CO Cu 2 2
Cu =
Cu = 2 2
O =
O = 1 1
C =
C =

5. yes 2 2 2 2 1 1 Chemical Equation 2 CuO + C → CO2 + 2 Cu Reactants
Element(s)
Not balanced
Balanced, or not?
Reactants
Products
yes 1)
2 CuO + C → CO Cu 2 2
Cu =
Cu = 2 2
O =
O = 1 1
C =
C =

6. 1 4 2 Chemical Equation CH4 + O2 → CO2 + 2 H2O Reactants Products 2)
Element(s)
Not balanced
Balanced, or not?
Reactants
Products 2)
CH4 + O2 → CO H2O O H C 1
C =
C = 4
H =
H = 2
O =
O =

7. 1 1 4 4 2 4 Chemical Equation CH4 + O2 → CO2 + 2 H2O Reactants
Element(s)
Not balanced
Balanced, or not?
Reactants
Products 2)
CH4 + O2 → CO H2O O C H 1 1
C =
C = 4 4
H =
H = 2 4
O =
O =

8. No 1 1 4 4 2 4 Chemical Equation Oxygen CH4 + O2 → CO2 + 2 H2O
Element(s)
Not balanced
Balanced, or not?
Reactants
Products No 2)
CH4 + O2 → CO H2O
Oxygen 1 1
C =
C = 4 4
H =
H = 2 4
O =
O =

9. No 4 4 4 2 2 2 Chemical Equation 4 HCl + O2 → Cl2 + 2 H2O Chlorine
Element(s)
Not balanced
Balanced, or not?
Reactants
Products No 3)
4 HCl + O2 → Cl H2O
Chlorine 4 4
H =
H = 4 2
Cl =
Cl = 2 2
O =
O =

10. yes 1 1 4 4 2 2 1 1 Chemical Equation Ca(OH)2 + CO2 → CaCO3 + H2O
Element(s)
Not balanced
Balanced, or not?
Reactants
Products
yes 4)
Ca(OH)2 + CO2 → CaCO3 + H2O 1 1
Ca =
Ca = 4 4
O =
O = 2 2
H =
H = 1 1
C =
C =

11. No 3 3 2 2 2 6 Chemical Equation 3 Mg + 2 HCl → 3 MgCl2 + H2 Chlorine
Element(s)
Not balanced
Balanced, or not?
Reactants
Products No 5)
3 Mg HCl → 3 MgCl H2
Chlorine 3 3
Mg =
Mg = 2 2
H =
H = 2 6
Cl =
Cl =

12. yes 1 1 4 4 2 2 Chemical Equation Ca + 2 H2O → Ca(OH)2 + H2 Reactants
Element(s)
Not balanced
Balanced, or not?
Reactants
Products
yes 6)
Ca + 2 H2O → Ca(OH)2 + H2 1 1
Ca =
Ca = 4 4
H =
H = 2 2
O =
O =

13. No 2 2 6 5 6 5 Chemical Equation Hydrogen 2 NH3 + 3 Cl2 → 5 HCl + N2
Element(s)
Not balanced
Balanced, or not?
Reactants
Products 7)
2 NH Cl2 → 5 HCl + N2 No
Hydrogen
Chlorine 2 2
N =
N = 6 5
H =
H = 6 5
Cl =
Cl =

14. No 4 4 12 12 6 10 Chemical Equation 4 NH3 + 3 O2 → 4 NO + 6 H2O Oxygen
Element(s)
Not balanced
Balanced, or not?
Reactants
Products No 8)
4 NH O2 → 4 NO H2O
Oxygen 4 4
N =
N = 12 12
H =
H = 6 10
O =
O =

15. Ca10F2(PO4)6 + 7 H2SO4 → 3 Ca(H2PO4)2 + 7 CaSO4 + 2 HF
Chemical Equation
Element(s)
Not balanced
Balanced, or not?
Reactants
Products 9)
Ca10F2(PO4) H2SO4 → 3 Ca(H2PO4) CaSO HF
Ca =
Ca =
F =
F =
P =
P =
O =
O =
H =
H =
S =
S =

16. Ca10F2(PO4)6 + 7 H2SO4 → 3 Ca(H2PO4)2 + 7 CaSO4 + 2 HF
Chemical Equation
Element(s)
Not balanced
Balanced, or not?
Reactants
Products
Ca10F2(PO4) H2SO4 → 3 Ca(H2PO4) CaSO HF 9) Ca P O O O O H S O
Ca =
Ca = Ca H S O Ca
F =
F = P O O O O H S O Ca
P =
P = Ca F P O O O O Ca
O =
O = H S O H S O Ca F
H = P O O O
H = O Ca Ca P
S = O O O O
S = H S O Ca P O O O O H S O

17. Ca10F2(PO4)6 + 7 H2SO4 → 3 Ca(H2PO4)2 + 7 CaSO4 + 2 HF
Chemical Equation
Element(s)
Not balanced
Balanced, or not?
Reactants
Products 9)
Ca10F2(PO4) H2SO4 → 3 Ca(H2PO4) CaSO HF
yes 10 10
Ca =
Ca = 2 2
F =
F = 6 6
P =
P = 52 52
O =
O = 14 14
H =
H = 7 7
S =
S =

18. CHEMICAL EQUATIONS.