Unbalanced reaction to balance with answers key

 Q balance the following reactions 

1. NaH2PO4 -> NaPO3 + H2O
2. H2CO3 -> H2O + CO2
3. BaSO4 + H2SO4 -> Ba(HSO4)2
4. CaCO3 -> CaO + CO2
5. CaO + H2O -> Ca(OH)2
6. H2SO3 -> H2O + SO2
7. H3PO4 + Ca(OH)2 -> CaHPO4.2H2O
8. NaPO3 + CuO -> NaCuPO4
9. SO3 + H2O -> H2SO4
10. Be(OH)2 -> BeO + H2O
11. BaO + H2O -> Ba(OH)2
12. Na2SO3 + S -> Na2S2O3
13. SO2 + H2O -> H2SO3
14. Li2O + H2O -> LiOH
15. Na2HPO4 -> Na4P2O7 + H2O
16. H4As2O7 -> As2O5 + H2O
17. CaC2 + N2 -> CaCN2 + C
18. Mg(OH)2 -> (MgOH)2O + H2O
19. HAsO3 -> As2O5 + H2O
20. KHSO4 -> K2S2O7 + H2O
21. H3PO4 -> H4P2O7 + H2O
22. NaCl + NH4HCO3 -> NaHCO3 + NH4Cl
23. HAsO2 -> As2O3 + H2O
24. UO3 + H2 -> UO2 + H2O
25. CdSO4 + H2S -> CdS + H2SO4

Answers Key

1. Balanced
2. Balanced
3. Balanced
4. Balanced
5. Balanced
6. Balanced
7. Balanced
8. Balanced
9. Balanced
10. Balanced
11. Balanced
12. Balanced
13. Balanced
14. Li2O + H2O -> 2LiOH
15. 2Na2HPO4 -> Na4P2O7 + H2O
16. H4As2O7 -> As2O5 + 2 H2O
17. CaC2 + N2 -> CaCN2 + 2C
18. 2Mg(OH)2 -> (MgOH)2O + H2O
19. 2HAsO3 -> As2O5 + H2O
20. 2KHSO4 -> K2S2O7 + H2O
21. 2H3PO4 -> H4P2O7 + H2O
22. Balanced
23. 2HAsO2 -> As2O3 + H2O
24. Balanced
25. Balanced