Question

as magnesium burns in oxygen to produce magnesium oxide, there is no change in mass. explain

Answer 1

yes there no change in mass because every chemical reaction has to follow "law of conservation of mass"

Answer 2

according to the law of conservation of mass ..which states tht ....mass can neither be created nor be destroyed it can only be transferred from one form to another ....therefore the mass of magnesium oxide is also same ..after burning