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9th Grade Chemistry- Balancing Chemical Equations Practice Test 2



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Which numbers balance the equation:
___ Fe2(SO4)3 + ___ KOH ---> ___ K2SO4 + ____ Fe(OH)3
a.
2, 12, 3, 4
c.
1, 6, 3, 4
b.
1, 6, 3, 2
d.
1, 3, 1, 1
 

 2. 

Which numbers balance the equation:
___Ca10F2(PO4)6 +___ H2SO4 ---> ___ Ca(H2PO4)2 + ___ CaSO4 + ___ HF
a.
1, 7, 3, 7, 2
c.
2, 14, 6, 14, 2
b.
1, 7, 3, 7, 1
d.
1, 7, 2, 7, 2
 

 3. 

Which numbers balance the equation: ___ FeS2 + ___ O2 ---> ___ Fe2O3 + ___ SO2
a.
2, 2, 1, 2
c.
4, 10, 2, 8
b.
4, 11, 2, 8
d.
2, 5, 1, 4
 

 4. 

Which numbers balance the equation:
___Fe2O3 + ___ C ---> ___ CO + ___ Fe
a.
1, 6, 3, 2
c.
2, 3, 3, 2
b.
1, 3, 3, 2
d.
2, 6, 6, 1
 

 5. 

Which numbers balance the equation:
___ Al(OH)3 + ___ H2SO4 ---> ___Al2(SO4)3 + ___ H2O
a.
2, 6, 2, 12
c.
4, 6, 2, 6
b.
2, 1, 1, 1
d.
2, 3, 1, 6
 

 6. 

Which numbers balance the equation:
__ Si + ___S8 ---> ___ Si2S4
a.
4, 1, 4
c.
8, 2, 2
b.
2, 1, 1
d.
4, 1, 2
 

 7. 

Which numbers balance the equation:
__ MgNH4PO4 ---> __Mg2P2O7 + __ NH3 + __ H2O
a.
1, 2, 1, 2
c.
2, 1, 2, 1
b.
2, 1, 4, 1
d.
4, 2, 4, 1
 

 8. 

Which numbers balance the equation: ___ C7H6O2 + ___ O2 ---> ___ CO2 + ___ H2O
a.
2, 7, 14, 6
c.
1, 7, 7, 1
b.
1, 7, 7, 3
d.
2, 15, 14, 6
 

 9. 

Which numbers balance the equation:
___ As + ___ NaOH ---> ___ Na3AsO3 + ___ H2
a.
2, 3, 1, 3
c.
2, 6, 2, 3
b.
2, 6, 4, 3
d.
1, 2, 1, 3
 

 10. 

Which numbers balance the equation:
__ Ca3(PO4)2 + __ SiO2 ---> __ P4O10 + __ CaSiO3
a.
2, 6, 1, 6
c.
4, 6, 2, 6
b.
2, 3, 1, 3
d.
1, 3, 1, 3
 



 
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