Question

Which postulate of Dalton’s theory is consistent with the following observation concerning the weights of reactants and products? a) The Law of Definite Proportions.

b) The Law of Conservation of Mass.

c) The Law of Multiple Proportions.

d) The Law of Conservation of Energy.

Answer 1

The observation that the total mass of reactants equals the total mass of products in the heating of calcium carbonate supports Dalton's Law of Conservation of Mass.

Step-by-step explanation:

The observation concerning the weights of reactants and products that when 100 grams of solid calcium carbonate is heated, 44 grams of carbon dioxide and 56 grams of calcium oxide are produced is consistent with the Law of Conservation of Mass.

This is because the total mass of the reactants equals the total mass of the products, which aligns with Dalton's postulate that in a chemical reaction, mass is neither created nor destroyed. This aligns with the principle that matter can neither be created nor destroyed in an ordinary chemical reaction.