Question

question no. 1) :-Which organisation approves the names of elements all over the world ? Write the symbol of gold
question no. 2) :- Define law of conservation of mass.




go through the attachment please​

Answer 1

Answer:

1) IUPAC, Au

2) The law of conservation of matter says that in chemical reactions, the total mass of the products must equal the total mass of the reactants.

Explanation:

Answer 2

Answer:

• 1.IUPAC
• Chemistry Portal
• The currently accepted names and symbols of the chemical elements are determined by the International Union of Pure and Applied Chemistry (IUPAC), usually following recommendations by the recognized discoverers of each element.
• 2.In physics and chemistry, 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