Question

All of the following reactions are described as decomposition reactions except
A) PCl5(g) →PCl3(g) + Cl2(g).
B) 2H2O(g) →2H2(g) + O2(g).
C) BaCl2 + 2H2O(s) →BaCl2(s) + 2H2O(g).
D) CH4(g) + Cl2(g) →CH3Cl(g) + HCl(g).
E) CaCO3(s) →CaO(s) + CO2(g).

Answer

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