Question

state the law : law of conservation of mater , law of conservation proportion​

Answer 1

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.In other words, in a chemical reaction, the mass of the products will always be equal to the mass of the reactant
• Law of constant proportion states that : · a chemical compound always contains exactly the same proportion of elements by mass.