Question

each metal cannot react with itsits own ssalt.exlaiin

Answer 1

In a displacement reaction, a more reactive metal can displace a less reactive metal from its salt solution. ...The elements potassium, sodium, lithium and calcium are very reactive and they react with cold water to produce hydroxides and hydrogen gas

Answer 2

each metal cannot react with their own metals because the valency remains same and they are not able to displace itself or v can say that the charges remain constant....