You get gold. It is dangerous because manufacturing gold could lead to the collapse of the bullion market.
If you heat it up after you mix it, you will form "organosulfide" compounds.
and add it to water
It changes into a compound. You start with two elements and then when you heat them it changes to a compound. A compound is something that has new chemical and physical properties
The product is Copper Sulphate. Formula = CuSO4
The iron and sulfur react to form the compound iron sulfide.
Forms the compound, iron sulfide.
sulfur reacts violently with heat causing flames
You get an explosion.
Friction, resulting in heat
No. Sulfur is a nonmetal and is not a conductor of heat or electricity.
Yes. This often happens with friction. For example, if you rub your hands together, you can feel the heat.
Simply heating (warming) sulfur could be a physical change if nothing happens to the sulfur other than it just getting warmer, and when you remove the heat, it stays as the original sulfur. However, more likely than not, heating sulfur will cause a CHEMICAL change where the sulfur combusts and turns into sulfur dioxide (SO2).