It is a weak oxidizing agent.
It reacts with most metals to make copper and a metal sulfate.
For example, it reacts with iron to make copper and iron(II) sulfate.

Fe + CuSO₄ → FeSO₄ + Cu
It reacts with sodium hydroxide or potassium hydroxide to make copper(II) hydroxide.

CuSO₄ + 2 NaOH → Cu(OH)₂ + Na₂SO₄
It reacts with sodium carbonate to make copper(II) carbonate.

CuSO₄ + Na₂CO₃ → CuCO₃ + Na₂SO₄
It reacts with ammonia to make a dark blue solution.
This solution can dissolve fibers in cotton.

CuSO₄ + 4 NH₃ → Cu(NH₃)₄SO₄
When it is heated to a high temperature, it turns into copper(II) oxide and sulfur trioxide.

CuSO₄ → CuO + SO₃
It makes a blue-green color when it is heated in a flame, like all copper compounds.
It is a weak oxidizing agent. It reacts with most metals to make copper and a metal sulfate. For example, it reacts with iron to make copper and iron(II) sulfate. 
Fe + CuSO₄ → FeSO₄ + Cu
It reacts with sodium hydroxide or potassium hydroxide to make copper(II) hydroxide. 
CuSO₄ + 2 NaOH → Cu(OH)₂ + Na₂SO₄
It reacts with sodium carbonate to make copper(II) carbonate.
CuSO₄ + Na₂CO₃ → CuCO₃ + Na₂SO₄
It reacts with ammonia to make a dark blue solution. This solution can dissolve fibers in cotton. 
CuSO₄ + 4 NH₃ → Cu(NH₃)₄SO₄
When it is heated to a high temperature, it turns into copper(II) oxide and sulfur trioxide.
CuSO₄ → CuO + SO₃
It makes a blue-green color when it is heated in a flame, like all copper compounds.
Copper(II) sulfate