阿摩線上測驗
78. Reaction of potassium metal with excess O2(g) leads to KO2(s). Determine the oxidation state of the oxygen in KO2(s).
(A) +1
(B) –2
(C) –0.5
(D) +2
(E) –1
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統計： A(0), B(1), C(31), D(0), E(0) #3101829
統計： A(0), B(1), C(31), D(0), E(0) #3101829
