Question

3. The chemical compound responsible for the green deposit on the surface of articles of copper.
4. A metal used in flexible pipes.
5. A halogen which is a solid at room temperature.​

Answer 1

Answer:

3.the chemical compounds is copper carbonate caco3.caoh

4 and 5 I have doubt so I will suggest that you try and Google it

Answer 2

Explanation:

3.Copper hydroxide and copper carbonate mixture

4.Steel

5.Sulphur