Question

mass nither be created nor be destroyed can be the characteristic of chemical reaction

Answer 1

Law of conservation of mass-

1)Mass of reactants=mass of products(this is why eqn is balanced)

2)The Conservation of Mass-Energy. There is a scientific law called the Law of Conservation of Mass, discovered by Antoine Lavoisier in 1785. In its most compact form, it states: matter is neither created nor destroyed.

3)atoms/mass can be released in form of heat,light,etc(energy)