Question

state 2 changes that r reversible

Answer 1

n2+3h2->2nh3
coso4.5h20->cuso4

Answer 2

hiii!!!

here's ur answer...

reversible changes are physical change in which there is no change in the chemical nature of that substance.

there are many reversible changes.. some of them are :-

1. freezing water into ice.

2. rolling a roti out of it's dough.

3. making a plane from a paper.

4. melting wax.

5. boiling water to form steam.

hope this helps..!!