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Calculations involving masses Typeit
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Chemical reactions can be represented by balanced symbol equations using the law of . This law means that the sum of the relative of the reactants is equal to that of the . Apparent large changes in mass are usually explained by the failure to account for the mass of products or reactants.
The of a solution can be determined if its volume and the mass of solute used are known. Some reactions will be set up to have an of reactant A so that all of reactant B is used up. Reactant B is called the in this case.