Question

what happens when magnesium reacts with carbon dioxide and why does magnesium need to be cleaned with sand paper before burning?

Answer 1

Mg+CO2>>MgCO3

MAGNESIUM NEED TO BE CLEANED WITH SAND PAPEE BECAUSE IT IS COATED WITH A LAYER OF OXIDE .

Answer 2

when magnesium reacts with carbon dioxide it gives us it gives us mgo and c

2Mg+CO2=)2Mgo+C

To clean oxidized surface a sand paper is used