Để làm sạch một mẫu đồng kim loại có lẫn sắt kim loại và kẽm kim loại có thể ngâm mẫu đồng vào dung dịch nào sau đây? FeCl2 dư. ZnCl2 dư. CuCl2 dư. AlCl3 dư.

Can you me with this i really appreciate it

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins. co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)

What is the full form of icc in chemistry?