Students react zinc with hydrochloric acid to produce zinc chloride and hydrogen gas. They weighed the reactants, the flask, and the balloon that captured the hydrogen gas. The zinc was added to the acid and the balloon attached across the mouth of the flask. The table shows the data each group collected. Group Zn & HCl ZnCl2 & H2
1 155.7 g 155.6 g
2 157.8 g 157.7 g
3 148.2 g 146.5 g
4 155.9 g 155.9 g
5 169.4 g 169.3 g
Explain how the data supports the Law of Conservation of Mass.

Group of answer choices

A. The mass on the reactants side is very similar to the mass on the products side.

B. The mass on the reactants side is much lower than the products side.

C. There is not enough information about the mass on both reactant and product sides.

D. The mass on the reactants side is much higher than the mass on the products side.