According to the law of conservation of mass, in a chemical reaction, the total mass of the reactants must equal the total mass of the products.
In this case, you have:
- Mass of reactant A = 10 grams
- Mass of reactant B = 5 grams
Total mass of reactants = 10 grams + 5 grams = 15 grams.
Therefore, the total mass of the products would also be 15 grams.
The correct answer is: The total mass of the products would be 15 grams.