Question

2.
4.8 g of KCIO3 when heated produced 1.9 g of oxygen and the residue (KCI) left behind 2.9 g. Which law of
chemical combination is illustrated.
(1) Law of mass conservation
(2) Law of definite proportion
(3) Law of reciprocal proportion
(4) Law of gaseous volume.​

Answer 1

Answer:

law of conservation of mass is the answer