Solution: Classify each substance as a pure substance or a mixture. If it is a pure
Chapter 0, Problem 35(choose chapter or problem)
Classify each substance as a pure substance or a mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogeneous or heterogeneous. (a) helium gas (b) clean air (c) rocky road ice cream (d) concrete
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