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8、在反應 S+KOH → K2S+K2SO4+H2O 中,氧化劑與還原劑的硫元素質量比為何?(A) 1:3 (B) 1:2 (C) 3:1 (D) 2:1。
問題詳情
8、在反應 S+KOH → K2S+K2SO4+H2O 中,氧化劑與還原劑的硫元素質量比為何?
(A) 1:3
(B) 1:2
(C) 3:1
(D) 2:1。
參考答案
答案:C
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
上一篇 :
16. My new shoes made my heels _______. My feet hurt a lot. (A) moist (B) drugged (C) clumsy (D) raw
下一篇 :
6、下列反應,何者需要氧化劑參與? (A) KMnO4 → MnSO4 (B) K2Cr2O7 → K2CrO4 (C) MnO2 → MnCl2(D) H2O2 → O2 (E) Na2S2O5 →
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