Consider the following equation: 4Fe + 3O₂ → 2Fe₂O₃: The combined mass of the reactants is for example 320 grams. The mass of the product will be _____?

Answer: Same as that of reactant
Explanation

According to the law of conservation of mass, the total mass of reactants equals the total mass of products in a chemical reaction.

Since no atoms are lost or gained, the mass of Fe₂O₃ (product) remains 320 grams, the same as the reactants.

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