题干

构建知识网络是一种重要的学习方法.如图是关于盐酸化学性质的知识网络,“﹣”表示相连的两种物质能发生反应,“→”表示一种物质转化成另一种物质,A、B、C属于不同类别的化合物.完善这个知识网络:

(1)写出一组A、B、C的化学式:A____ ;B____ ;C____ .

(2)根据自己得出的知识网络写出①②化学方程式:①____ ,②____ .

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答案(点此获取答案解析)

Na2CO3,HNO3或H2SO4,NaOH,Na2CO3+2HNO3=2NaNO3+H2O+CO2↑,Zn+2HCl=ZnCl2+H2

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