A、B、C、D是初中化学中的常见物质,它们之间有如右图所示的转化

ABCD是初中化学中的常见物质,它们之间有如右图所示的转化关系,请根据有关信息回答下列问题:

1)若A为常见金属,C为一种最轻的气体,D溶液呈浅绿色;B的名称为_____      ____

2)若A为一氧化碳,C为金属,则该反应_________(填“是”或“不是”)置换反应;

3)若该反应是中和反应,其中CBaSO4,该反应的化学方程式为

                                                   

 


答案

1)稀盐酸(或稀硫酸) 2)不是  3H2SO4Ba(OH)2=BaSO4↓+2H2O(2)

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