I just know my daughter was our dependent the year she graduated from college because she lived with us until December, but she will not be this year (2012 taxes) since she has her own place. She is still on our health insurance until she's 26; however.
Answers. The law of conservation of matter states that in any given system that is closed to the transfer of matter, the amount of matter in the system stays constant. 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.
The Law of Conservation of Mass (or Matter) in a chemical reaction can be stated thus: In a chemical reaction, matter is neither created nor destroyed. It was discovered by Antoine Laurent Lavoisier (1743-94) [15K GIF] about 1785.our teacher will never require you to know the history involved, but will probably test this statement: In a chemical reaction, matter is neither created nor destroyed. It is the Law of Conservation of Mass. Antoine Laurent Lavoisier is its discoverer.