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Questions 4.5.3

  1. Complete Table 4.5.3 to indicate the observations and products formed.

  2. Write chemical equations for the reactions.

  3. What can you conclude about effect of heat on nitrates of heavy metals?



Answers to Questions 4.5.3

  1. Chemistry

  2. Cu(NO3)2(s)   ⟶   CuO(s)   +   2NO2(g)   +   O2(g)

    Zn(NO3)2(s)   ⟶   ZnO(s)   +   2NO2(g)   +   O2(g)

    Pb(NO3)2(s)   ⟶   PbO(s)   +   2NO2(g)   +   O2(g)

  3. Nitrates of heavy metals decompose on heating to form metal oxide, nitrogen (IV) oxide, and oxygen gas.