balanced equation?

Question

copper sulfate pentahydrate + heat

Answer 1

Copper sulfate most occurs in nature as the pentahydrate (CuSO4 · 5H2O). This mineral is called chalcanthite. Copper(II) sulfate decomposes before melting. The common pentahydrate form dehydrates, losing four water molecules at 98 °C and all five at 120 °C. At 650 °C copper(II) sulfate decomposes into copper(II) oxide (CuO), Sulfur dioxide (SO2) and oxygen (O2). When heated in an open flame the crystals are dehydrated and turn grayish-white.
CuSO4 · 5H2O ==> CuSO4 . H2O + 4H2O
CuSO4 . H2O ==> CuSO4 + H2O
2CuSO4 ===> 2CuO + 2SO2 + O2