Question

Sulfur burns in the presence of oxygen to produce sulfur dioxide. Explain how the mass of sulfur dioxide produced compares to the combined mass of sulfur and oxygen.

Answer 1

What does the law of conservation of mass indicate?

Answer 2

Is this on the right track?.....mass cannot be created/destroyed, although it may be rearranged in space, and changed into different types of particles. This implies that for any chemical process in a closed system, the mass of the reactants must equal the mass of the products.