Steam is a gaseous compound, ie. vaporous water eventually mixed (homogenously) with others like in air.
However a heterogenous mixture of tiny water dropplets, which can be seen coming off a container with boiling water, is (erroneously) called steam, this is a heterogenous mixture of air (gas) and liquid (water). Real steam is invisible, and far more dangerous to get burnt from!
Heterogeneous mixture.
It is a heterogeneous mixture.
It is a heterogeneous mixture.
It is a heterogeneous mixture.
It is a heterogeneous mixture.
mixture
element
It is a heterogeneous mixture.
Heterogeneous
Sulphur is an element. It is neither compound nor mixture.
Sulphur is an element. It is neither compound nor mixture.
Dirt is generally (but not obligatory) a heterogeneous mixture.