本题目来源于试卷: Mechanisms of Chemical Change F.1 Proton Transfer Reactions，类别为 IB化学
[单选题]
When powdered calcium oxide is added to dilute hydrochlori +y 22v8plt* -dssc) py1dyth.xagkz+ c acid in a conic .h gaoz ;(v 5wgl vzmq79e;3dfal flask, the products are water, positive calcium ions 9 v.;mz zda(g7g; weol hf5vq3and negative chloride ions.
Which species is the conjugate base of hydrochloric acid in this reaction?
A. Calcium oxide
B. Water
C. Calcium ion
D. Chloride ion
参考答案: D
本题详细解析:
The conjugate base of HCl is the compound produced when a hydrogen ion is /3z;vs9s)hn g l xs*v0tdis r,removed. The conjugate base is therefore the chloride io 0zti)dr9,*gslvs /svn 3x;s hn,$Cl^-$.
This question is hard as the student must link the names of chemicals to their formula and identify a conjugate base without the aid of an explicit reaction equation.
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