Question

give a reason why an equation is balanced with reference to the law of conservation of matter

Answer 1

 Chemical equations need to be balanced in order to satisfy the law of conservation of matter, which states that in a closed system matter is neither created nor destroyed.

Answer 2

Answer:

Law of conservation of matter states that matter is neither created nor destroyed during a chemical reaction. It is true only if the number of atoms on both sides is equal, because otherwise there will be addition or subtraction of atoms.