Question:

What is the difference between a mixture & substance?

Answer:

Usually by pure substances we mean either pure elements (all one type of atom), regular crystals (atoms arranged in a repeating pattern), or things made of only one type of molecule (a tightly bound structure of one or more types of atoms). Things that have different types of atoms or molecules, not arranged in regular patterns, are typically called mixtures. AnswerParty on!

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