Chemical Mimicry
This is related to both Body Transformation-Self and to Power Duplication. The hero can duplicate the chemical properties of any element or compound without his own body actually changing in composition. The hero's flesh simply acts as if it were the desired substance.
Obviously the hero retains his solidity, even when duplicating the properties of a liquid or gas. Depending on the desired effect, the range of his chemical power varies from contact to 1 area.
Tracking the hero by smell is difficult because his scent changes with each mimicry (-4CS to tracking ability).
Range: See Above.