This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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You're on a roll — let's continue with question 3 from PART I. The question states: "O enunciado, 'Num Sistema fechado, a massa total dos reagentes é igual à massa total dos produtos formados' corresponde a lei de..." (The statement, 'In a closed system, the total mass of the reactants is equal to the total mass of the products formed' corresponds to the law of...) Step 1: Understand the statement. The statement describes the Law of Conservation of Mass, which dictates that mass is neither created nor destroyed in a chemical reaction. The total mass of the substances before a chemical reaction (reactants) must equal the total mass of the substances after the reaction (products). Step 2: Identify the scientist associated with this law. Antoine Lavoisier is credited with formulating and experimentally verifying the Law of Conservation of Mass. Step 3: Evaluate the given options. A. Berzelius: Known for developing chemical symbols and determining atomic weights. B. Dalton: Known for the atomic theory. C. Lavoisier: Known for the Law of Conservation of Mass. D. Símbolos químicos (Chemical symbols): This is not a law or a person. The correct option is C. You're doing great, Candido! What's next?