salt or NaCl is a compound that contains two elements
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.