how do I know
nothing, the size of any metal usually expands when heated, but unless you are heating it in a forge also you have to heat it almost to melting point.
no answer
Yes
carbonate reactions when heated
It will evaporate.
it evaporates
it will melt
What happen to the soil and water when they are heated? http://wiki.answers.com/FAQ/2455http://wiki.answers.com/FAQ/2502
100F
When it is heated to an extreme temperature.
It depends how much heat is applied and the mass of the gold.