a)Using the data provided, determine the mass percent of water and the mass percent of anhydrous copper (II) sulfate in your sample of hydrated copper (II) sulfate.  b) calculate how much water evaporated   mass of hydrated copper (II) sulfate: 131.4g mass of anhydrous copper (II) sulfate: 130.26g

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.