Question

What is the colour of Feso4,7H2O crystalls? what does 7H2O represents?How does colour changes on heating ? Give the balance chemical Equation for the following​

Answer 1

The colour of FeSo4.7H20 is pale green

7H20 represents the number of water molecules in it.

while heating it loses water molecule so the colour changes.

2FeSo4 - Fe2O3 + So2 + SO3

Answer 2

colour : pale green.

7H2O represents the water of crystallisation

on heating pale green changes to reddish brown

2FeSO4 --------> Fe2O3 + SO2 + SO3

(ferrous               (ferric

sulphate)             oxide)

HOPE IT HELPS.............