No. Pure substances are homogeneous, never heterogeneous.
No, it is a heterogeneous mixture
Its a pure substance
Some people divide matter into pure substances and mixtures. Pure substances are elements and compounds. Mixtures include homogeneous and heterogeneous mixtures. Some people divide matter into homogeneous matter and heterogeneous matter. Homogeneous matter includes pure substances and homogeneous mixtures (solutions). Heterogeneous matter is heterogeneous mixtures.
Neither, its a pure substance
No. Pure substances are homogeneous, never heterogeneous.
Pure iron is homogeneous.
pure air is homogeneous but dusty air is heterogeneous
Heterogeneous vs. homogeneous refers to solutions. Pure water is a compound which is bound together chemically. Solutions are combined physically. So technically it is neither.
Pure air is homogeneous because all components are completely miscible.
No, mercury is a pure substance.
No, it is a heterogeneous mixture
homogeneous
It is a pure substance.
Its a pure substance
pure substance