The brown colored element, copper on heating in air forms copper oxide which in black in color.
2Cu(s) +O2(g) gives rise to 2CuO(s)
because
Copper oxider
Nothing
copper oxide
Nothing. Copper is not magnetic.
waste heat is heat that is wasted, like cars waste 75% of heat
Copper is deposed on the steel wool.
Copper Oxide (CuO) + Water (H(sub2)O)
Copper sulfate is dissociated in water.
Uranium doesn't react with copper.
No reaction
nothing