Name _____________________________
Balancing
Balancing Equations Challenge
Part A: Parts & Pieces
(1) Circle each subscript in each chemical formula.
(2) Draw a square around each coefficient.
(3) Answer the questions related to each chemical formula.
O2
CO2
5 H2
What element does the O represent?
___________________
How many atoms of each element are in the formula shown?
C = ______ O = ______
How many atoms of Hydrogen are in this formula as shown?
______
2C2H6
2Na2SO4
How many atoms each element are in the formula shown?
C = ______ H = ______
How many atoms each element are in the formula shown?
Na = ______ S = ______ O = ______
Part B: Label the chemical equation using PRODUCT, REACTANTS, SUBSCRIPT, COEFFICIENT, and YIELDS.
2 Mg + O2
T. Trimpe 2006
→ 2 MgO http://sciencespot.net/ Part C: Balance each of the following equations.
H2 +
O2 →
H2O
N2 +
H2 →
NH3
Al2 O3 →
C2 H6 +
O2
Al
→
Remember → List the atoms, count, and solve!
H2O2 →
P4 +
+
CO2
O2 →
O2
+
H2O + O2
P4O6
Fe +
H2O
T. Trimpe 2006
Na2SO4 +
http://sciencespot.net/
Na + O2
C+
H2O →
CaCl2 →
→
H2 →
Fe3O4 +
CaSO4 +
Na2O
CH4
H2
NaCl
Answer Key
Balancing
Balancing Equations Challenge
Part A: Parts & Pieces
(1) Circle each subscript in each chemical formula.
(2) Draw a square around each coefficient.
(3) Answer the questions related to each chemical formula.
O2
CO2
5 H2
What element does the O represent?
OXYGEN
How many atoms of each element are in the formula shown?
C=1 O=2
How many atoms of Hydrogen are in this formula as shown? 10
2C2H6
2Na2SO4
How many atoms each element are in the formula shown?
C = 4 H = 12
How many atoms each element are in the formula shown?
Na = 4 S = 2 O = _8
Part B: Label the chemical equation using PRODUCT, REACTANTS, SUBSCRIPT, COEFFICIENT, and YIELDS.
YIELDS
REACTANTS
PRODUCT
2 Mg + O2
SUBSCRIPT
T. Trimpe 2006
→ 2 MgO
COEFFICIENT
http://sciencespot.net/
Part C: Balance each of the following equations.
2H2 +
O2 →
2H2O
N2 +
3H2 →
2NH3
2Al2 O3 →
4Al
Remember → List the atoms, count, and solve!
2H2O2 →
P4 + 3O2
+
3O2
2C2 H6 + 7O2 → 4CO2 +
2H2O + O2
→
P4O6
4Na +
O2 →
C + 2H2
→
3Fe +
6H2O
T. Trimpe 2006
4H2O →
Fe3O4 +
Na2SO4 +
CaCl2 →
CaSO4 +
http://sciencespot.net/
2Na2O
CH4
4H2
2NaCl
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