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CHEMISTRY, M2 EQ-Bank 1

Balance the following chemical equations:

  1. \(\ce{HCl(aq) + Zn(s) -> ZnCl2(aq) + H2(g)}\)   (1 mark)
  1. \(\ce{C2H6(l) + O2(g) -> H2O(l) + CO2(g)}\)   (1 mark)
  1. \(\ce{H3PO4(aq) + CuCO3(aq) -> Cu3(PO4)2(aq) + CO2(g) + H2O(l)}\)   (1 mark)
  1. \(\ce{CuSO4(aq) + AgNO3(aq) -> Ag2SO4(s) + Cu(NO3)2(aq)}\)   (1 mark)
Show Answers Only

a.    \(\ce{2HCl(aq) + Zn(s) -> ZnCl2(aq) + H2(g)}\)

b.    \(\ce{2C2H6(l) + 7O2(g) -> 6H2O(l) + 4CO2(g)}\)

c.    \(\ce{2H3PO4(aq) + 3CuCO3(aq) -> Cu3(PO4)2(aq) + 3CO2(g) + 3H2O(l)}\)

d.    \(\ce{CuSO4(aq) + 2AgNO3(aq) -> Ag2SO4(s) + Cu(NO3)2(aq)}\)

Show Worked Solution

a.    \(\ce{2HCl(aq) + Zn(s) -> ZnCl2(aq) + H2(g)}\)

b.    \(\ce{2C2H6(l) + 7O2(g) -> 6H2O(l) + 4CO2(g)}\)

c.    \(\ce{2H3PO4(aq) + 3CuCO3(aq) -> Cu3(PO4)2(aq) + 3CO2(g) + 3H2O(l)}\)

d.    \(\ce{CuSO4(aq) + 2AgNO3(aq) -> Ag2SO4(s) + Cu(NO3)2(aq)}\)