Granite is a rock, a non-homogeneous mixture of minerals.
It is a pure substance.
pure substance
Pure Iron is considered as Homogeneous. Whereas, Iron with rust or other impurities is Heterogeneous.
Homogeneous mixture
water is pure so is homogeneous ice is pure so is homogeneous oil is pure so is homogeneous
CO2 is a pure substance and so is homogeneous. Hint: if it has a chemical formula then it is a pure substance.
Pure substance; it is one form of pure carbon.
Homogeneous mixture
It is not pure and it is not homogeneous.
no
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