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balance chemical equations worksheet 1 (key)

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Name: Date: Balancing Equations About Chemistry http://chemistry.about.com Balance the following chemical equations. 1. 2 Fe + 3 H 2 S0 4 1 Fe 2 (SO 4 ) 3 + 3 H 2 2. 2 C 2 H 6 + 7 O 2 6 H 2 O + 4 CO 2 3. 3 KOH + 1 H 3 PO 4 1 K 3 PO 4 + 3 H 2 O 4. 1 SnO 2 + 2 H 2 1 Sn + 2 H 2 O 5. 4 NH 3 + 5 O 2 4 NO + 6 H 2 O 6. 2 KNO 3 + 1 H 2 CO 3 1 K 2 CO 3 + 2 HNO 3 7. 1 B 2 Br 6 + 6 HNO 3 2 B(NO 3 ) 3 + 6 HBr 8. 2 BF 3 + 3 Li 2 SO 3 1 B 2 (SO 3 ) 3 + 6 LiF 9. 4 (NH 4 ) 3 PO 4 + 3 Pb(NO 3 ) 4 1 Pb 3 (PO 4 ) 4 + 12 NH 4 NO 3 10. 1 SeCl 6 + 1 O 2 1 SeO 2 + 3 Cl 2

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Page 1: Balance Chemical Equations Worksheet 1 (KEY)

Name: Date:

Balancing Equations

About Chemistry http://chemistry.about.com

Balance the following chemical equations.

1. 2 Fe + 3 H2S04

1 Fe2(SO4)3 + 3 H2

2. 2 C2H6 + 7 O2

6 H2O + 4 CO2

3. 3 KOH + 1 H3PO4

1 K3PO4 + 3 H2O

4. 1 SnO2 + 2 H2

1 Sn + 2 H2O

5. 4 NH3 + 5 O2

4 NO + 6 H2O

6. 2 KNO3 + 1 H2CO3

1 K2CO3 + 2 HNO3

7. 1 B2Br6 + 6 HNO3

2 B(NO3)3 + 6 HBr

8. 2 BF3 + 3 Li2SO3

1 B2(SO3)3 + 6 LiF

9. 4 (NH4)3PO4 + 3 Pb(NO3)4

1 Pb3(PO4)4 + 12 NH4NO3

10. 1 SeCl6 + 1 O2

1 SeO2 + 3 Cl2

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