Question

what is law of conservation of mass?​

Answer 1

Answer:

Law of conservation of mass states that a mass of an element in the starting of a reaction will be equal to the mass of the same element at the end of a reaction..

Answer 2

$\huge\tt\pink{Answer:}$

The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed