Question

law of conservation of mass with example

Answer 1

law of conservation of mass states that mass is an isolated system is  neither be created nor can be destroyed by any chemical reactions or any physical transformation.

e.g. combustion of paper -( in this process the mass of the paper is not actually destroyed it just transformed into another form ).

Answer 2

$\huge{HEY!!}$
_________________________________

✴Law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction.

✴For example first of all we take a solution of Lead Nitrate in water then take its weight. Let it's its weight be x gram.

✴After that we take some sodium chloride solution and weight it, let it be y gram.

✴Then add this solution to the lead nitrate, we will find that a white precipitate is formed.

✴Then we take weight of total solution, we will find that the total weight of the contents is (x + y) gram equal to the total weight of the two solution taken.

✴Hence, it can be said that mass is neither created nor destroyed even during a chemical change only care to be taken is that no material is allowed to escape during the reaction.