In a chemical reaction, if 10 grams of reactant A react with 5 grams of reactant B to produce a new substance, what is the total mass of

the products?(1 point)
The total mass of the products would be 5 grams.
The total mass of the products would be 10 grams.
The total mass of the products would be 15 grams.
The total mass would be none of the above.

1 answer

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.