pure substance
Homogeneous mixture
Homogeneous mixture
Pure substance; it is one form of pure carbon.
copper is an ELEMENT therefore it is not a heterogeneous OR homogeneous mixture.
no
Neither, its a pure substance
Neither, Oxygen is a pure substance not a mixture.
An aerosol may be pure or an impure material, homogeneous or not.
Liquid gold-homogeneous Solid-heterogenous
Ca is an element. It is a pure substance, which, by definition, is homogeneous matter, but is not a mixture.
Liquid gold-homogeneous Solid-heterogenous
They are homogeneous. But they are not a mixture, so they are a pure substance