SCH 3U
Chemical Reactions
Name: _________________________
Balancing Equations
Write balanced chemical equation for each of the following.
1. ammonia + oxygen gas  nitrogen monoxide + water
4 NH3 + 5 O2  4 NO + 6 H2O
2. hydrogen sulfide + oxygen gas  water + sulfur dioxide
2 H2S + 3 O2  2 H2O + 2 SO2
3. calcium phosphate + sulfuric acid  calcium sulfate + calcium dihydrogen phosphate
Ca3(PO4)2 + 2 H2SO4  2 CaSO4 + Ca(H2PO4)2
4. copper + nitric acid  copper (II) nitrate + nitrogen dioxide + water
Cu + 4 HNO3  Cu(NO3)2 + 2 NO2 + 2 H2O
5. sodium chloride + sulfurous acid  sodium sulfite + hydrochloric acid
2 NaCl + H2SO3  Na2SO3 + 2 HCl
6. ammonium hydroxide + phosphoric acid  ammonium phosphate + water
3 NH4OH + H3PO4  (NH4)3PO4 + 3 H2O
7. sulfur dioxide + hydrogen sulfide  water + sulfur
8 SO2 + 16 H2S 16 H2O + 3 S8
8. aluminum sulfate + sodium bicarbonate  aluminum hydroxide + carbon dioxide + sodium sulfate
Al2(SO4)3 + 6 NaHCO3  2 Al(OH)3 + 6 CO2 + 3 Na2SO4
9. aluminum + hydrochloric acid  aluminum chloride + hydrogen gas
2 Al + 6 HCl(aq)  2 AlCl3 + 3 H2
10. calcium nitrite + sodium phosphate  calcium phosphate + sodium nitrite
3 Ca(NO2)2 + 2 Na3PO4  Ca3(PO4)2 + 6 NaNO2
11. aluminum sulfate + sodium bicarbonate  aluminum hydroxide + carbon dioxide + sodium sulfate
Al2(SO4)3 + 6 NaHCO3  2 Al(OH)3 + CO2 + 3 Na2SO4
12. lead (II) nitrate  lead (II) oxide + nitrogen dioxide + oxygen
2 Pb(NO3)2  2 PbO + 2 NO2 + 3 O2
13. bismuth (III) chloride + hydrogen sulfide  bismuth (III) sulfide + hydrochloric acid
2 BiCl3 + 3 H2S  Bi2S3 + 6 HCl(aq)
14. sulfur dioxide + water  sulfurous acid
SO2 + H2O  H2SO3
SCH 3U
Chemical Reactions
15. carbon dioxide + water  carbonic acid
Name: _________________________
CO2 + H2O  H2CO3
16. magnesium + carbon dioxide  magnesium oxide + carbon
2 Mg + CO2  2 MgO + C
17. carbon dioxide + carbon  carbon monoxide
CO2 + C  2 CO
18. sodium sulfate + barium chloride  sodium chloride + barium sulfate
Na2SO4 + BaCl2  2 NaCl + BaSO4
19. tetracarbon decahydride + oxygen  carbon dioxide + water
2 C4H10 + 9 O2  8 CO2 + 10 H2O
20. ferric oxide + hydrochloric acid  ferric chloride + water
Fe2O3 + HCl(aq)  FeCl3 + H2O
21. sodium bicarbonate  sodium carbonate + water + carbon dioxide
NaHCO3  Na2CO3 + H2O + CO2
22. copper + chlorine  cupric chloride
Cu + Cl2  CuCl2
23. chlorine + sodium hydroxide  sodium hypochlorite + sodium chloride + water
Cl2 + 2 NaOH  NaClO + NaCl + H2O
24. aluminum + sulfuric acid  aluminum sulfate + hydrogen gas
2 Al + 3 H2SO4  Al2(SO4)3 + 3 H2
25. sodium peroxide + water  sodium hydroxide + hydrogen peroxide
Na2O2 + 2 H2O  2 NaOH + H2O2
26. ammonium chloride + sodium nitrite  nitrogen + water + sodium chloride
NH4Cl + NaNO2  N2 + 2 H2O + NaCl
27. iron + sulfur  ferric sulfide
16 Fe + 3 S8  8 Fe2S3
28. magnesium hydroxide + phosphorous acid  magnesium phosphite + water
3 Mg(OH)2 + 2 H3PO3  Mg3(PO3)2 + 6 H2O