Since gold is an element and therefore a pure substance it is homogeneous.
homogeneous
Pure air is homogeneous because all components are completely miscible.
homogeneous
If you mean homogeneous or heterogeneous, then iron is homogeneous: it is a pure element.
Since gold is an element and therefore a pure substance it is homogeneous.
Liquid gold-homogeneous Solid-heterogenous
Liquid gold-homogeneous Solid-heterogenous
Pure iron is homogeneous.
homogeneous
pure air is homogeneous but dusty air is heterogeneous
No. Pure substances are homogeneous, never heterogeneous.
Pure air is homogeneous because all components are completely miscible.
Homogeneous mixture. If it was heterogeneous, the substance (s) would not be spread out evenly.
Heterogeneous
homogeneous
air is homogeneous