Final answer:
The total mass of the products formed from the decomposition of 25.00 g of baking soda is also 25.00 g, in accordance with the Law of Conservation of Mass.
Step-by-step explanation:
Based on the Law of Conservation of Mass, the mass of products formed when baking soda decomposes will be equal to the mass of the reactant. Given the decomposition reaction of sodium bicarbonate (baking soda) NaHCO3 → Na2CO3 + CO2 + H2O, if we start with 25.00 g of sodium bicarbonate, the total mass of the products, which are sodium carbonate, carbon dioxide, and water, will also be 25.00 g. The mass of the reactants is always equal to the mass of the products as per the law, which is a key concept in composition and decomposition reactions.