Question 5.5: Classes of Reactions Classify each of the following as a dec...
Classes of Reactions
Classify each of the following as a decomposition, combination, single-displacement, or double-displacement reaction.
(a) Na2S(aq) + 2HCl(aq) → H2S(g) + 2NaCl(aq)
(b) H2(g) + CuO(s) → Cu(s) + H2O(g)
(c) 2Fe(s) + 3Cl2(g) → 2FeCl3(s)
(d) 2Na2O2(s) → 2Na2O(s) + O2(g)
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