Question

1. Which of the following does NOT show the law of conservation of mass? (1 point)24 g of Mg burn in 32 g O2 to produce 56 g of MgO.
24 mL of Mg burn in 32 mL O2 to produce 56 mL of MgO.
2 atoms of Mg react with 1 molecule of O2 to produce 2 units of MgO.
1 atom of Mg reacts with 1 atom of O to produce a unit of MgO that contains 2 atoms

Answer 1

the last one is the answer!