Answers by visitors named: Javal

is that the only method. Well if i want both the water and copper sulphate than what can i do?

oh thanks yea that's perfect what i needed

I know that all of this are chemical changes and mostly all chemical changes are non reversible. However, there are some that are reversible. I'm just not sure if any of this ones are reversible or no.

oh geography trust me just remember the map and definitions and you should be good