The chlorine dissipates as a gas..... when it's silver chloride, and both copper and silver tarnish in air (the green "copper" you see on roofs (rooves
) is copper nitrate.
When you heat copper in just a bunsen burner, it goes purply and dull and red and sort of multicoloured - I've done copper enamelling, (jewellery, by myself) and I've seen fused glass plates and dishes with copper inclusions - which are all "burnt coppery" colours (they're lovely pieces - The Carnelian Gallery, in Crieff
) and glass is fused at lower temperatures than are required to melt glass....
I did say I'm no good at physical chemistry.... I've just got a few inklings about how individual ions work, and they've got a nasty habit of flying off at random in subatomic bits.
I like great hulking lumps of protein molecules swimming around in a pH specific primordial soup, doing lovely neat gloopy enzymatic things with other proteins in a controlled manner at controlled rates..... mump grump...