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Copper is a metal & solid
Copper Sulphate is a blue crystalline solid.
copper (II) carbonate is a solid
This phenomenon is called melting, the ordered molecules of the solid becomes non-ordered in the liquid phase.
At room temperature the copper wire connecting your computer to the wall happens to be solid. If it were liquid, it would flow all over the place and you could not plug your computer into the wall. You do have your computer plugged in, don't you?
If something is reversible it can be changed back . Melting is a reversible change - the liquid can be changed back into a solid by freezing
Copper is a metal & solid
Solid copper reacts with solid sulfur to form Copper(I) sulfide. 2Cu(s)+S(s) -> Cu2S(s)
Copper Sulphate is a blue crystalline solid.
Yes, is changed back in a solid.
Copper sulfate in the solid form are crystals
Copper Sulphate is a powder at room temperature, therefore it is a solid.
copper (II) carbonate is a solid
Yes, copper(II) oxide is a solid at standard and room temperature. Copper(I) oxide is also a solid in these conditions as well.
No, copper is a solid metal.
malleabily of copper is a physical change because the cooper can be re changed back to its original state
This phenomenon is called melting, the ordered molecules of the solid becomes non-ordered in the liquid phase.