下圖是鎂、鋅、鐵、銅四種金屬與稀鹽酸反應(yīng)的示意圖。

 


(1)根據(jù)圖中現(xiàn)象分析,A表示的金屬是           

(2)寫出金屬C與稀鹽酸反應(yīng)的化學(xué)方程式                                     

(3)由圖中現(xiàn)象可知,影響金屬與酸反應(yīng)快慢的因素有                            


(1)   鎂(或者M(jìn)g)         。

(2)       Fe+2HCl===FeCl2+H2        

(3)          金屬的活動(dòng)性強(qiáng)弱                  。


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