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Feliz [49]
3 years ago
14

In a balanced chemical reaction which of the following is true? The products will weigh more than the reactants. The reactants w

ill weigh more than the products. The mass of the products depends on whether they are gases or not. The products and reactants will weigh the same.
Chemistry
1 answer:
chubhunter [2.5K]3 years ago
4 0
The products and reactants weigh the same since u have to balance out the equation to have an equal number of molecules on bothsides
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Semmy [17]

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\% H_2O=51.2\%

Explanation:

Hello!

In this case, since the percent water is computed by dividing the amount of water by the total mass of the hydrate; we infer we first need the molar mass of water and that of the hydrate as shown below:

MM_{MgSO_4* 7H_2O}=120.36 g/mol+7*18.02g/mol\\\\MM_{MgSO_4* 7H_2O}=246.5g/mol

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