Heterogeneous Mixture Homogeneous Mixture Worksheet-Answer Key Exercise 1. Describe the following as an element, a compound, a homogenous mixture, or a heterogeneous mixture: a) a pure silver ring ______element______ b) pure water _____compound_____ c) sugar water _homogeneous mix___ d) pure magnesium oxide (MgO) _____compound_____ e) air, containing O2 and N2 _homogeneous mix___ f) soil _heterogeneous mix__ g) sand stirred in water _heterogeneous mix__ Dr. Scott Beaver Page 1 of 2 Heterogeneous Mixture Homogeneous Mixture Worksheet-Answer Key h) pure boiling water ____compound______ i) limestone (CaCO3) ___ compound ______ j) marble __heterogeneous mix__ k) blood _ heterogeneous mix _ l) HCl (aq) _ homogeneous mix _ m) HCl (g) in air _homogeneous mix __ n) brass with 60% zinc content _ homogeneous mix__ o) brass with 40% zinc content _ homogeneous mix _ p) iron _____element_______ q) steel _heterogeneous mix __ r) diamond-coated steel tool _heterogeneous mix __ Dr. Scott Beaver Page 2 of 2