classify the following as pure substance or mixture:
soil
lemonade
24 karat gold
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soil-heterogeneous mixture
lemonade-he substances in a mixture also do not combine chemically to form a new substance, as they do in a compound. ... The lemonade pictured above is a mixture because it doesn't have fixed proportions of ingredients. It could have more or less lemon juice,
24 karat gold-14-karat gold is an alloy of gold and other metals such as copper and silver. Alloys are homogeneous mixtures. Pure gold is referred to as 24-karat gold. c) Propane is a chemical compound so it is a pure substance
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