已知置换反应:A + B → C + D。 (1)若D为氢气,B为稀硫酸,则A的选

已知置换反应:A + B C + D

1)若D为氢气,B为稀硫酸,则A的选择应满足的条件是____________________

2)若D为铜,化合物B可能为_________________________________

答案

(1)金属活动性顺序排在氢之前的金属   2)硫酸铜(合理即可)

相关题目

——Have you heard that Taiwan pop singer Jam Hsiao will perform in Shanghai
——Have you heard that Taiwan pop singer Jam Hsiao will perform in Shanghai at the end of this month? ——Of course. All his fans were ______ to hear the exciting news. A. green with envy   
已知△ABC的三边且,求
已知△ABC的三边且,求
在下列各项中,不属于青春期发育特点的是( )A.身高迅
在下列各项中,不属于青春期发育特点的是( )A.身高迅速增长B.身体迅速长胖C.出现第二性征D.神经系统的调节功能增强
直线l1经过点A(m,1),B(-3,4),直线l2经过点C(1,m),D(-1,m+1
直线l1经过点A(m,1),B(-3,4),直线l2经过点C(1,m),D(-1,m+1),当l1∥l2或l1⊥l2时,分别求实数m的值.
We _____ you a great success in your new experiment. A. hope        B. wi
We _____ you a great success in your new experiment. A. hope        B. wish           C. want       D. expect  
设C+CO22CO-Q1(吸热反应)  反应速率为 u1,   N2+3H22NH3+Q2(
设C+CO22CO-Q1(吸热反应)  反应速率为 u1,   N2+3H22NH3+Q2(放热反应)反应速率为 u2,对于上述反应,当温度升高时,u1和u2的变化情况为 A.同时增大 
For an increasing number of students at American universities, old is suddenly i
For an increasing number of students at American universities, old is suddenly in. The reason is obvious: The graying of America means jobs. Coupled with the aging of the baby-boom (生育高峰)
某房间的电能表允许通过的最大电流是10A,房中有6个标有“2
某房间的电能表允许通过的最大电流是10A,房中有6个标有“220V 60W”的灯泡,1个标有“220V 1000W”的热水器,一台制冷时耗电为140W的电冰箱和1台耗电80W

最新题目