Mercury and gallium. Actually, gallium is the one that would turn from a solid to a liquid in a person's hand.
all metal can melt
melt him in lava it can melt the metal off mario
The ice takes heat energy from your palm causing the ice to melt and your palm to get colder.
If enough electrical energy is put into a metal, it can easily melt that metal.
melt the plastic to the metal
All the alkali metals will melt.
Yes, though they melt at different temperatures.
humans
you melt it
it can
you can melt them
Don't confuse the process of melting, which is caused by heat, with the process of dissolving, which is caused by solvents such as acid. Acid can dissolve metal, but it does not melt metal.