Answer
d. The mass of product is exactly 120g
Work Step by Step
In a chemical reaction, according to The Law of conservation of mass, the sum of the reactants masses must be equal to the mass of the products.
100 g + 20 g = 120 g
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.