The reaction given is CaCO3heat−−→CaO+CO2 The chemical equation shows CaCO3 being heated. Which of these statement best describes the mass of the products if 100g of CaCO3 is heated?
A
The difference in the products' masses is equal to the mass of CaCO3
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B
The sum of the products' masses is less than the mass of CaCO3
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C
The mass of each product is equal to the mass of CaCO3
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D
The sum of the products' masses is equal to the mass of CaCO3
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Solution
The correct option is D The sum of the products' masses is equal to the mass of CaCO3 The conservation of mass states that the mass on the reactant"s side= mass on the product"s side. So option D is analogous to the law.