Question

To illustrate the reaction of metals with salt solutions ​

Answer 1

Answer:

MgSo4+Ca⇒CaSo4+Mg

Explanation:

Answer 2

Answer:

put iron nail in the solution of salt of copper sulphate.

iron will replace copper to form iron sulphate and blue colour of the solution will change into green.

this shows that higher reactive metal replaces lower reactive metal from its salt solution

fe + cuso4 --> feso4 + cu