金属X放入CuSO4溶液中有红色物质析出、放入ZnSO4溶液中无现象。则三

金属X放入CuSO4溶液中有红色物质析出、放入ZnSO4溶液中无现象。则三种金属活动性由强到弱排列的是…………………………………………………………………………………(   )

AZnXCu       BCuXZn           CZnCuX      DXZnCu

答案

A

相关题目

秦始皇统一全国后说:“天下共苦战斗不休,以有侯王。赖
秦始皇统一全国后说:“天下共苦战斗不休,以有侯王。赖宗庙天下初定,又复立国是树兵也,而求其宁息,岂不难哉!”基于此种认识,秦朝采取的地
已知等比数列{an}的公比q=﹣,则等于()     A.       
已知等比数列{an}的公比q=﹣,则等于()     A.             ﹣                B. ﹣3             C.     D. 3
The great _____ of this computer is that it’s so cheap compared to the others.
The great _____ of this computer is that it’s so cheap compared to the others.     A. power               B. strength                    C. energy        
(本小题 7 分)计算: 
(本小题 7 分)计算: 
甲生物核酸的碱基组成为:嘌呤占46%,嘧啶占54%,乙生物遗
甲生物核酸的碱基组成为:嘌呤占46%,嘧啶占54%,乙生物遗传物质的组成为:嘌呤占34%,嘧啶占66%,则甲、乙生物可能是(     ) A.蓝藻、变形虫 
Advertising is a highly developed twentieth-century industry. The development of
Advertising is a highly developed twentieth-century industry. The development of radio, television, cinema, magazines and newspapers has gone hand in hand with the development of advertising. Why is a
若正比例函数的图象经过点(-1,2),则其解析式为    
若正比例函数的图象经过点(-1,2),则其解析式为               ;
(16届湖北省利川市文斗乡长顺初级中学九年级上学期第一次
(16届湖北省利川市文斗乡长顺初级中学九年级上学期第一次月考)阅读下面诗歌,完成后面题目 错误  郑愁予 我打江南走过 那等在季节里的容颜如莲

最新题目