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Law of Conservation of Mass

In a chemical...

Question

In a chemical reaction, 300 grams of reactant A combines with 100 grams of reactant B to give a product C. Both A and B react completely. How much will product C weigh?

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Solution

According to the law of conservation of mass in chemical reactions, the mass of the reactants equals the mass of the products in an isolated system.

As per the law, mass of reactants = mass of the products.
Therefore, the mass of product C is 400 g.

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