Question

What is Mass?
What is law of conservation of Mass?

Answer 1

$\star\: \sf\green{Mass}$

Anything which occupies space and has mass is called matter.

Example : Air and water,Hydrogen and oxygen,Sugar and sand,silver and steel etc.

$\star\: \sf\green{Laws\:of\:conservation\:of\:Mass}$

Laws of conservation of mass was given by Antoine Lavoisier in 1774. According to the law of conservation of mass : Matter is neither be created nor destroyed in a chemical reaction. The law of conservation of amss means that in a chemical reaction, the total mass 9f reactants. There is no change in mass during a chemical reaction. A glass of chocolate milk is made using Milk,Chocolate and Sugar. New substance are formed only when pre - existing was combined in nature.

Answer 2

SOLUTION:-

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. Therefore, the quantity of mass is conserved over time.

The law implies that mass can neither be created nor destroyed, although it may be rearranged in space, or the entities associated with it may be changed in form. For example, in chemical reactions, the mass of the chemical components before the reaction is equal to the mass of the components after the reaction. Thus, during any chemical reaction and low-energy thermodynamic processes in an isolated system, the total mass of the reactants, or starting materials, must be equal to the mass of the products.