The law of conservation of mass states that the combined mass of the compounds on the reactant side is always equal to that of those on the product side.
As the question is seemingly incomplete, I'd suggest you to either edit it, or just do it yourself (with the help of this law).
Learn more about similar (or same) question at:
https://brainly.com/question/11490473?utm_source=android&utm_medium=share&utm_campaign=question
