Chemistry
Senior High
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高一先修化學求解
(E)2X+3Y→2
乙炔是工業上重要的原料,可由下列方法製得:
CaCz(s)+2H2O(l)→Ca(OH)2(s)+CHz(g)
取64克 CaC2和9克水充分反應時,最多產生乙炔(CHz(g))多少克?(原子
量:Ca=40)
(A) 2.6 (B) 4.4 (C)6.5 (D) 16 (E) 73。
NH
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