Question

define law of conservation of mass with example

Answer 1

The law of conservation of mass states that mass can neither be created nor be destroyed in a chemical reaction. In other words, the mass of the reactant(s) is equal to the mass of the product(s).

Example :
H2SO4 + 2NaOH ————> Na2SO4 + 2H2O.

Answer 2

$\bold{ Law \: of \: conservation \:of \: mass :-}$

=> In all physical and chemical Changes the total mass of reactant is equal to total mass of product.

=> This law was given by French Chemist Anotonin Lavoisier.

=> According to this law mass can neither be created nor be distroyed.

=>Or According to the this law there is no increase or decrease in the total mass of matter during physical or chemical Change.

=> This law is also called the Law of indestrucibility of matter.

$\bold{ Example:- }$

✔The burning of carbon (CO2)

C +O2--------> CO2

CARBON +OXYGEN = CARBON DIOXIDE


According to above reaction or According to this law the mass of carbon or oxygen i.e mass of reactants is equal to mass of product carbon dioxide after the reaction.