Temperature or pressure.
Mercury is an element. it exists in liquid state.
Steam is a compound. It is actually water in the gaseous state.
Water vapour is a compound. It is just water in a gaseous state.
Yes it is a fossil fuel.
No. It is a physical change as the actual compound does not change, only its state does.
Evaporation is a physical or a state change. The element or compound is not altered, and one would get it back through condensation.
if sodium is in a compound, it will not be in natural state. natural state implies that it is a pure element. ie not a compound
Mercury is an element. it exists in liquid state.
Mercury is an element. it exists in liquid state.
Mercury is an element. it exists in liquid state.
Mercury is an element. it exists in liquid state.
Mercury is an element. it exists in liquid state.
Temperature or pressure.
Steam is a compound. It is actually water in the gaseous state.
Vaporization of an element or compound is a phase transition from the liquid or solid phase to gas phase
Steam is simply water in a gaseous state, so it is a compound.
pure material