chocolate
An ice cube will melt faster in hot water.
Ice cubes don't faster in cold water because the temparature of cold water is low, ice cubes melt faster in high temparature.
The fire is hotter than the boiling water, so it will melt faster over a fire.
Oil, try it out on a stove.
It melts faster in cold
if it is hot water it tends to melt faster but if it is cold water it wont melt quickly
yes.
It is never a good idea to melt chocolate in water, because a chemical reaction will occur and the chocolate will "seize up." It is best to melt chocolate very slowly over low heat, in a double boiler or in the microwave. i think you can, i have before, it does not melt fast though...
Yes.
No heat so it cant melt like the warm water. they are the same temp/.
Yes, water will melt faster on a very cold soft drink can. This is due to evaporation, which tends to become expedited during cold and frigid temperatures.