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Chemical Reactions and Equations
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02/09/2021 9:53 am
Topic starter
Write one equation each for the decomposition reactions where energy is supplied in the form of
(a) heat, (b) light, and (c) electricity.
1 Answer
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02/09/2021 10:01 am
(a) Decomposition reaction where heat is supplied for energy.
2Pb(NO3)2(s) + Heat + Decomposition → 2PbO(s) + 4NO2(g) + O2(g)
(Colourless) (Yellow) (Brown Fumes)
(b) Decomposition reaction where light is supplied for energy.
2AgCl(s) + Light + Decomposition → 2Ag(s) + Cl2(g)
(White) (Grey-white) (Yellowish-green)
(c) Decomposition reaction where electricity is supplied for energy.
2H2O(l) + Electricity + Decomposition → 2H2(g) + O2(g)