Challenging Questions

Question 1
Balance the following equation:
__ KOH + __ H3PO4 → __ K3PO4 + __ H2O
Question 2
Balance the following equation:
__ KNO3 + __ H2CO3 → __ K2CO3 + __ HNO3
Question 3
Balance the following equation:
__ Na3PO4 + __ HCl → __ NaCl + __ H3PO4
Question 4
Balance the following equation:
__ TiCl4 + __ H2O + __ TiO2 + __ HCl
Question 5
Balance the following equation:
__ C2H6O + __ O2 → __ CO2 + __ H2O
Question 6
Balance the following equation:
__ Fe + __ HC2H3O2 → __ Fe(C2H3O2)3 + __ H2
Question 7
Balance the following equation:
__ NH3 + __ O2 → __ NO + __ H2O

Question 8Question 9
Balance the following equation:
__ B2Br6 + __ HNO3 → __ B(NO3)3 + __ HBr
Balance the following equation:
__ NH4OH + __ Kal(SO4)2·12H2O → __ Al(OH)3 + __ (NH4)2SO4 + __ KOH + __ H2O

Answers
1. 1 SnO2 + 2 H2 → 1 Sn + 2 H2O
2. 3 KOH + 1 H3PO4 → 1 K3PO4 + 3 H2O
3. 2 KNO3 + 1 H2CO3 → 1 K2CO3 + 2 HNO3
4. 1 Na3PO4 + 3 HCl → 3 NaCl + 1 H3PO4
5. 1 TiCl4 + 2 H2O + 1 TiO2 + 4 HCl
6. 1 C2H6O + 3 O2 → 2 CO2 + 3 H2O
7. 2 Fe + 6 HC2H3O2 → 2 Fe(C2H3O2)3 + 3 H2
8. 4 NH3 + 5 O2 → 4 NO + 6 H2O
9. 1 B2Br6 + 6 HNO3 → 2 B(NO3)3 + 6 HBr
10. 4 NH4OH + 1 Kal(SO4)2·12H2O → 1 Al(OH)3 + 2 (NH4)2SO4 + 1 KOH + 12 H2O