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From a consideration of the following reaction system 2H2S(g) + O2(g) → 2S(s) + 2H2O(g) we can conclude that a. the reaction is second order in H2S and first order in O2. b. the reaction is first order in H2S and second order in O2. c. rate = k[H2S]2[O2]. d. rate = k[H2S][O2]. e. None of these conclusions are justified.