![]() Chemical Reactions & Equations: Just as atoms and ions combine in very specific ways, molecules and compounds react with each other in definite quantities.Find out how to predict how many of one type of atom or ion will combine with others. Chemical Formulas: Atoms and ions don't bond together randomly. ![]() ![]() Define these terms and learn how to perform calculations to express quantities. A mole is a useful way of measuring an amount of atoms or larger components of matter.
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