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 hydrochloric acid in a conic vu pza-pp8.1n)y wiyvt;g u0) lx -c0n;ec;+gw.nftval flask, the products are - c fn g0.vlx;cwe+;tnwater, positive calcium ions and 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 whib445yr.mh m8du gn 3cyrl;x6en a hydrogen ion is removed. The conjugate base is theref4dm r yr5h8 umcb4y;glx.6 3niore the chloride ion,$Cl^-$.
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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