LAST NAME________________ FIRST NAME____________________ BLOCK___ DATE___
7.1 BALANCING REACTIONS PRACTICE
SOLUTIONS- STUDENT EXERCISE - Classify the following equations as Synthesis, Decomposition, Single
Displacement or Double Displacement and THEN balance the equations
EXAMPLE:
1
C6H12O6 +
6
6
O2
LEFT SIDE (REACTANTS)
C- 6
H- 12
O-18
CO2 +
6H
2O
RIGHT SIDE (PRODUCTS)
C- 6
H- 12
O- 18
1. ____Mg
+____P4
___ Mg3P2
LEFT SIDE (REACTANTS)
MgP-
RIGHT SIDE (PRODUCTS)
MgP-
2. ___NaCl ___Na + ___Cl2
LEFT SIDE (REACTANTS)
Na –
Cl -
RIGHT SIDE (PRODUCTS)
Na Cl
____H2
+ ____N2
LEFT SIDE (REACTANTS)
NH-
3.
_____NH3
RIGHT SIDE (PRODUCTS)
NH-
___C4H10 + ___O2 ___CO2 + ___H2O
LEFT SIDE (REACTANTS)
CHO-
4.
___Na + ___ZnCl2 ___NaCl + ___Zn
LEFT SIDE (REACTANTS)
Na –
ZnCl-
5.
RIGHT SIDE (PRODUCTS)
CHO-
RIGHT SIDE (PRODUCTS)
Na –
ZnCl-
___HCl + ___NaOH ___HOH + ___NaCl
LEFT SIDE (REACTANTS)
H–
ClNaOH is treated as one thing
RIGHT SIDE (PRODUCTS)
H–
ClNaOH-
THERE ARE MORE ON THE BACK OF THIS PAGE
Combustion
1. ___Fe + ___O2 ___FeO
2. ___Fe + ___O2 ___Fe2O3
3. ___C4H10 + ___O2 ___CO2 + ___H2O
4. ___Ca(OH)2 + ___H3PO4 ___Ca3(PO4)2 + ___H2O
5. ___Na + ___HOH ___NaOH + ___H2
6. ___N2 + ___H2 ___NH3
7. ___HCl + ___FeS ___FeCl2 + ___H2S
8. ___Fe + ___CuSO4 ___FeSO4 + ___Cu
9. ___P + ___Cl2 ___PCl3