Balancing Chemical Equations 1 62494o
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WORKSHEET 1 - BALANCE THE FOLLOWING CHEMICAL EQUATIONS WHERE NECESSARY. Note: Many elements exist as diatomic molecules. ie. H2, O2, N2, F2, Cl2, Br2, I2 1.
Na
+
O2
Na2O
2.
Na
+
Cl2
NaCl
3.
Na
+
H2O
NaOH
4.
Na
+
H2
NaH
5.
Na
+
N2
Na3N
6.
Mg
+
O2
MgO
7.
Mg
+
Cl2
MgCl2
8.
Mg
+
CO2
MgO
9.
Ag
+
O2
AgO
10.
Al
+
Br2
AlBr3
11.
Al
+
O2
Al2O3
12.
Al
+
N2
AlN
13.
Li
+
HCl
14.
Mg
+
15.
Li
16.
+
H2
+
C
LiCl
+
H2
HCl
MgCl2
+
H2
+
H2SO4
Li2SO4
+
H2
Sr
+
H2SO4
SrSO4
+
H2
17.
NH3
+
HCl
NH4Cl
18.
CuO
+
HCl
CuCl2
+
H2O
19.
Ca(OH)2
+
CO2
CaCO3
+
H2O
20.
Al
+
HCl
AlCl3
+
H2
21.
Fe
+
CuSO4
Cu
+
FeSO4
22.
Al
+
Fe2O3
Fe
+
Al2O3
23.
KI
+
Pb(NO3)2
PbI2
+
KNO3
24.
Al
+
AgNO3
Ag
+
Al(NO3)3
25.
Al
+
H2SO4
Al2(SO4)3
+
H2
May be used for educational purposes upon acknowledgment © www.chemicalformula.org
(1)
WORKSHEET 2- BALANCE THE FOLLOWING CHEMICAL EQUATIONS WHERE NECESSARY. Note: Many elements exist as diatomic molecules. ie. H2, O2, N2, F2, Cl2, Br2, I2 26.
Na
+
S
Na2S
27.
Na
+
I2
NaI
HgO
Hg
+
O2
+
CO2
+
CO2
+
H2
+
H2O
28. 29.
ZnO
+
C
Zn
30.
Na
+
F2
NaF
CuCO3
CuO
31. 32.
Na
+
I2
NaI
33.
Ca
+
H2O
Ca(OH)2
34.
Ba
+
O2
BaO
35.
Ag
+
S
Ag2S
36.
CH4
+
O2
CO2
37.
Mg
+
N2
Mg3N2
38.
Mg
+
CO2
MgO
+
C
39.
Ba
+
HCl
BaCl2
+
H2
40.
K2O
+
H2SO4
K2SO4
+
H2O
41.
CuO
+
HNO3
Cu(NO3)2
+
H2O
42.
NaI
+
Cl2
NaCl
+
I2
43.
Al
+
F2
AlF3
44.
NaOH
+
CO2
Na2CO3
+
H2O
45.
Al2O3
+
HCl
AlCl3
+
H2O
46.
Cu
+
AgNO3
Cu(NO3)2
+
Ag
47.
PbS
+
O2
PbO
+
SO2
48.
Pb3O4
+
C
Pb
+
CO2
49.
Fe
+
Cl2
FeCl3
50.
Al2O3
+
NaOH
+
H2O
NaAl(OH)4
May be used for educational purposes upon acknowledgment © www.chemicalformula.org
(2)
WORKSHEET 1 - BALANCE THE FOLLOWING CHEMICAL EQUATIONS - ANSWERS = The chemical equation is already balanced. 1.
4Na
+
O2
2Na2O
2.
2Na
+
Cl2
2NaCl
3.
2Na
+
2H2O
2NaOH
4.
2Na
+
H2
2NaH
5.
6Na
+
N2
2Na3N
6.
Mg
+
O2
2MgO
7.
Mg
+
Cl2
MgCl2
8.
2Mg
+
CO2
2MgO
9.
2Ag
+
O2
2AgO
10.
2Al
+
3Br2
2AlBr3
11.
4Al
+
3O2
2Al2O3
12.
2Al
+
N2
2AlN
13.
2Li
+
2HCl
14.
Mg
+
15.
2Li
16.
+
H2
+
C
2LiCl
+
H2
2HCl
MgCl2
+
H2
+
H2SO4
Li2SO4
+
H2
Sr
+
H2SO4
SrSO4
+
H2
17.
NH3
+
HCl
NH4Cl
18.
CuO
+
2HCl
CuCl2
+
H2O
19.
2Al
+
6HCl
2AlCl3
+
3H2
20.
Fe
+
CuSO4
Cu
+
FeSO4
21.
2Al
+
Fe2O3
2Fe
+
Al2O3
22.
2KI
+
Pb(NO3)2
PbI2
+
2KNO3
23.
Al
+
3AgNO3
3Ag
+
Al(NO3)3
24.
2Al
+
3H2SO4
Al2(SO4)3
+
3H2
25.
Ca(OH)2
+
CO2
CaCO3
+
H2O
May be used for educational purposes upon acknowledgment © www.chemicalformula.org
(3)
WORKSHEET 2 - BALANCE THE FOLLOWING CHEMICAL EQUATIONS - ANSWERS = The chemical equation is already balanced. 26.
2Na
+
S
Na2S
27.
2Na
+
I2
2NaI
2HgO
2Hg
+
O2
+
CO2
+
CO2
+
2H2
+
2H2O
28. 29.
2ZnO
+
C
2Zn
30.
2Na
+
F2
2NaF
CuCO3
CuO
31. 32.
2Na
+
I2
2NaI
33.
Ca
+
2H2O
Ca(OH)2
34.
2Ba
+
O2
2BaO
35.
2Ag
+
S
Ag2S
36.
CH4
+
2O2
CO2
37.
3Mg
+
N2
Mg3N2
38.
2Mg
+
CO2
2MgO
+
C
39.
Ba
+
2HCl
BaCl2
+
H2
40.
K2O
+
H2SO4
K2SO4
+
H2O
41.
CuO
+
2HNO3
Cu(NO3)2
+
H2O
42.
2NaI
+
Cl2
2NaCl
+
I2
43.
2Al
+
3F2
2AlF3
44.
2NaOH
+
CO2
Na2CO3
+
H2O
45.
Al2O3
+
6HCl
2AlCl3
+
3H2O
46.
Cu
+
2AgNO3
Cu(NO3)2
+
2Ag
47.
2PbS
+
3O2
2PbO
+
2SO2
48.
Pb3O4
+
2C
3Pb
+
2CO2
49.
2Fe
+
3Cl2
2FeCl3
50.
Al2O3
+
2NaOH
+
3H2O
2NaAl(OH)4
May be used for educational purposes upon acknowledgment © www.chemicalformula.org
(4)
Na
+
O2
Na2O
2.
Na
+
Cl2
NaCl
3.
Na
+
H2O
NaOH
4.
Na
+
H2
NaH
5.
Na
+
N2
Na3N
6.
Mg
+
O2
MgO
7.
Mg
+
Cl2
MgCl2
8.
Mg
+
CO2
MgO
9.
Ag
+
O2
AgO
10.
Al
+
Br2
AlBr3
11.
Al
+
O2
Al2O3
12.
Al
+
N2
AlN
13.
Li
+
HCl
14.
Mg
+
15.
Li
16.
+
H2
+
C
LiCl
+
H2
HCl
MgCl2
+
H2
+
H2SO4
Li2SO4
+
H2
Sr
+
H2SO4
SrSO4
+
H2
17.
NH3
+
HCl
NH4Cl
18.
CuO
+
HCl
CuCl2
+
H2O
19.
Ca(OH)2
+
CO2
CaCO3
+
H2O
20.
Al
+
HCl
AlCl3
+
H2
21.
Fe
+
CuSO4
Cu
+
FeSO4
22.
Al
+
Fe2O3
Fe
+
Al2O3
23.
KI
+
Pb(NO3)2
PbI2
+
KNO3
24.
Al
+
AgNO3
Ag
+
Al(NO3)3
25.
Al
+
H2SO4
Al2(SO4)3
+
H2
May be used for educational purposes upon acknowledgment © www.chemicalformula.org
(1)
WORKSHEET 2- BALANCE THE FOLLOWING CHEMICAL EQUATIONS WHERE NECESSARY. Note: Many elements exist as diatomic molecules. ie. H2, O2, N2, F2, Cl2, Br2, I2 26.
Na
+
S
Na2S
27.
Na
+
I2
NaI
HgO
Hg
+
O2
+
CO2
+
CO2
+
H2
+
H2O
28. 29.
ZnO
+
C
Zn
30.
Na
+
F2
NaF
CuCO3
CuO
31. 32.
Na
+
I2
NaI
33.
Ca
+
H2O
Ca(OH)2
34.
Ba
+
O2
BaO
35.
Ag
+
S
Ag2S
36.
CH4
+
O2
CO2
37.
Mg
+
N2
Mg3N2
38.
Mg
+
CO2
MgO
+
C
39.
Ba
+
HCl
BaCl2
+
H2
40.
K2O
+
H2SO4
K2SO4
+
H2O
41.
CuO
+
HNO3
Cu(NO3)2
+
H2O
42.
NaI
+
Cl2
NaCl
+
I2
43.
Al
+
F2
AlF3
44.
NaOH
+
CO2
Na2CO3
+
H2O
45.
Al2O3
+
HCl
AlCl3
+
H2O
46.
Cu
+
AgNO3
Cu(NO3)2
+
Ag
47.
PbS
+
O2
PbO
+
SO2
48.
Pb3O4
+
C
Pb
+
CO2
49.
Fe
+
Cl2
FeCl3
50.
Al2O3
+
NaOH
+
H2O
NaAl(OH)4
May be used for educational purposes upon acknowledgment © www.chemicalformula.org
(2)
WORKSHEET 1 - BALANCE THE FOLLOWING CHEMICAL EQUATIONS - ANSWERS = The chemical equation is already balanced. 1.
4Na
+
O2
2Na2O
2.
2Na
+
Cl2
2NaCl
3.
2Na
+
2H2O
2NaOH
4.
2Na
+
H2
2NaH
5.
6Na
+
N2
2Na3N
6.
Mg
+
O2
2MgO
7.
Mg
+
Cl2
MgCl2
8.
2Mg
+
CO2
2MgO
9.
2Ag
+
O2
2AgO
10.
2Al
+
3Br2
2AlBr3
11.
4Al
+
3O2
2Al2O3
12.
2Al
+
N2
2AlN
13.
2Li
+
2HCl
14.
Mg
+
15.
2Li
16.
+
H2
+
C
2LiCl
+
H2
2HCl
MgCl2
+
H2
+
H2SO4
Li2SO4
+
H2
Sr
+
H2SO4
SrSO4
+
H2
17.
NH3
+
HCl
NH4Cl
18.
CuO
+
2HCl
CuCl2
+
H2O
19.
2Al
+
6HCl
2AlCl3
+
3H2
20.
Fe
+
CuSO4
Cu
+
FeSO4
21.
2Al
+
Fe2O3
2Fe
+
Al2O3
22.
2KI
+
Pb(NO3)2
PbI2
+
2KNO3
23.
Al
+
3AgNO3
3Ag
+
Al(NO3)3
24.
2Al
+
3H2SO4
Al2(SO4)3
+
3H2
25.
Ca(OH)2
+
CO2
CaCO3
+
H2O
May be used for educational purposes upon acknowledgment © www.chemicalformula.org
(3)
WORKSHEET 2 - BALANCE THE FOLLOWING CHEMICAL EQUATIONS - ANSWERS = The chemical equation is already balanced. 26.
2Na
+
S
Na2S
27.
2Na
+
I2
2NaI
2HgO
2Hg
+
O2
+
CO2
+
CO2
+
2H2
+
2H2O
28. 29.
2ZnO
+
C
2Zn
30.
2Na
+
F2
2NaF
CuCO3
CuO
31. 32.
2Na
+
I2
2NaI
33.
Ca
+
2H2O
Ca(OH)2
34.
2Ba
+
O2
2BaO
35.
2Ag
+
S
Ag2S
36.
CH4
+
2O2
CO2
37.
3Mg
+
N2
Mg3N2
38.
2Mg
+
CO2
2MgO
+
C
39.
Ba
+
2HCl
BaCl2
+
H2
40.
K2O
+
H2SO4
K2SO4
+
H2O
41.
CuO
+
2HNO3
Cu(NO3)2
+
H2O
42.
2NaI
+
Cl2
2NaCl
+
I2
43.
2Al
+
3F2
2AlF3
44.
2NaOH
+
CO2
Na2CO3
+
H2O
45.
Al2O3
+
6HCl
2AlCl3
+
3H2O
46.
Cu
+
2AgNO3
Cu(NO3)2
+
2Ag
47.
2PbS
+
3O2
2PbO
+
2SO2
48.
Pb3O4
+
2C
3Pb
+
2CO2
49.
2Fe
+
3Cl2
2FeCl3
50.
Al2O3
+
2NaOH
+
3H2O
2NaAl(OH)4
May be used for educational purposes upon acknowledgment © www.chemicalformula.org
(4)
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