Question

Magnesium metal burns vigorously in oxygen to produce the compound magnesium oxide. Use the law of conservation of mass to identify the masses labeled

Answer 1

Step-by-step explanation:

I think you are missing part of this question. But if it is balancing equations it looks like this

2Mg + O2 --> 2MgO

(48 + 32) --> 80 so it is 80 grams oon the reactant side and 80 grams on the product side