Balancing Equations
Color-by-Number
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Name: ___________________________________
Balancing Equations
Directions: Determine whether the following equations are balanced or unbalanced. Shade in the answer box with
the color given & then color the picture on the next page accordingly. *If the color is white, just circle the answer.
#
Question
Balanced
Unbalanced
1
Al + O2 → Al2O3
Color BLUE
Color LIGHT GREEN
2
Na + H2O → NaOH + H2
Color PURPLE
Color LIGHT GREEN
3
C2H6 + O2 → CO2 + H2O
Color RED
Color BLUE
4
NiCO3 → NiO + CO2
Color ORANGE
Color PINK
5
C3H8O3 + O2 → CO2 + H2O
Color YELLOW
Color LIGHT GREEN
6
N2O5 + H2O → HNO3
Color DARK BLUE
Color LIGHT PURPLE
7
HCl + Ca(OH)2 → CaCl2 + H2O
Color PINK
Color LIGHT GREEN
8
Zn + AgNO3 → Zn(NO3)2 + Ag
Color DARK PURPLE
Color BLUE
9
Mg + O2 → MgO
Color BROWN
Color ORANGE
10
NH4NO3 → N2O + H2O
Color BLUE
Color WHITE
11
Mg + LiNO3 → Mg(NO3)2 + Li
Color RED
Color LIGHT GREEN
12
Cu + FeSO4 → CuSO4 + Fe
Color LIGHT GREEN
Color DARK PINK
13
C6H6 + O2 → CO2 + H2O
Color YELLOW
Color ORANGE
14
Ag2O → Ag + O2
Color LIGHT PURPLE
Color LIGHT BLUE
15
KOH + H3PO4 → K3PO4 + H2O
Color WHITE
Color BLUE
16
BaCl2 + K2CO3 → BaCO3 + KCl
Color RED
Color BLUE
17
CH3OH + O2 → CO2 + H2O
Color PINK
Color BLUE
18
H 2O 2 → H 2O + O 2
Color YELLOW
Color DARK PURPLE
19
Mg + Zn(NO3)2 → Mg(NO3)2 + Zn
Color LIGHT GREEN
Color LIGHT BLUE
20
K + Cl2 → KCl
Color WHITE
Color ORANGE
© Science Chick 2016
Answer Key
Name: ___________________________________
Balancing Equations
Directions: Determine whether the following equations are balanced or unbalanced. Shade in the answer box with
the color given & then color the picture on the next page accordingly. *If the color is white, just circle the answer.
#
Question
Balanced
Unbalanced
1
Al + O2 → Al2O3
Color BLUE
Color LIGHT GREEN
2
Na + H2O → NaOH + H2
Color PURPLE
Color LIGHT GREEN
3
C2H6 + O2 → CO2 + H2O
Color RED
Color BLUE
4
NiCO3 → NiO + CO2
Color ORANGE
Color PINK
5
C3H8O3 + O2 → CO2 + H2O
Color YELLOW
Color LIGHT GREEN
6
N2O5 + H2O → HNO3
Color DARK BLUE
Color LIGHT PURPLE
7
HCl + Ca(OH)2 → CaCl2 + H2O
Color PINK
Color LIGHT GREEN
8
Zn + AgNO3 → Zn(NO3)2 + Ag
Color DARK PURPLE
Color BLUE
9
Mg + O2 → MgO
Color BROWN
Color ORANGE
10
NH4NO3 → N2O + H2O
Color BLUE
Color WHITE
11
Mg + LiNO3 → Mg(NO3)2 + Li
Color RED
Color LIGHT GREEN
12
Cu + FeSO4 → CuSO4 + Fe
Color LIGHT GREEN
Color DARK PINK
13
C6H6 + O2 → CO2 + H2O
Color YELLOW
Color ORANGE
14
Ag2O → Ag + O2
Color LIGHT PURPLE
Color LIGHT BLUE
15
KOH + H3PO4 → K3PO4 + H2O
Color WHITE
Color BLUE
16
BaCl2 + K2CO3 → BaCO3 + KCl
Color RED
Color BLUE
17
CH3OH + O2 → CO2 + H2O
Color PINK
Color BLUE
18
H 2O 2 → H 2O + O 2
Color YELLOW
Color DARK PURPLE
19
Mg + Zn(NO3)2 → Mg(NO3)2 + Zn
Color LIGHT GREEN
Color LIGHT BLUE
20
K + Cl2 → KCl
Color WHITE
Color ORANGE
© Science Chick 2016
1
5
9
1
1
15
9
1
1
1
7
7
14
2
2
2
1
15
7
14
2
7
10
8
1
9
1
14
17
11
17
1
2
9
1
1
14
11
7
5
8
16
3
14
19
13
19
11
1
18
8
14
5
6
3
6
16
11
3 16
8
14
18
6
6
17
8
16
18
20
19
8
18
16
6
14
14
7
7
15
7
7
7
16
7
7
11
8
3
16
6
12
8
18
19
13
13
13
13
13
13
20
12
14
14
13
12
12
14
13
17
12
12
12
12
12
Answer Key
1
5
9
1
1
15
9
1
7
14
15
7
7
11
1
14
11
10
8
8
7
19
16
3
5
14
13
15
1
7
2
2
2
9
1
1
14
2
1
1
14
17
1
17
1
2
9
1
1
11
6
3
8
14
6
16
16
18
11
3
8
16
5
8
14
18
6
6
11
17
19
18
18
20
19
8
18
16
6
14
7
7
7
7
8
3
7
12
8
16
12
11
6
18
19
13
13
13
13
13
13
13
17
20
12
14
14
13
12
12
14
11
7
7
16
7
15
14
18
12
12
12
12
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