Help. What is the equation of: a) Heating of the cupric sulfate?

Question

b) addition of H20 to the heated CuS04 c)calcium chloride crystals undergone change of liquid

Answer 1

a)cupric sulphate available generally (bright blue colored) is a penta hydrate and this is actually CuSO4.5H2O.when it is heated.it becomes colorless due to loss of water of hydration.the equation is:

CuSO4.5H2O+heat-----------> CuSO4+5H2O

b)on addition of water to heated CuSO4(anhydrous),the reverse reaction takes place.

CuSO4+5H2O------->CuSO4.5H2O

c)CaCl2 crystals are converted to liquid becoz of absorption of atmospheric moisture.this is a deliquiscent compopund.

Answer 2

H20 + CuSO4  ---> H2SO4 + CuO2