Question

Q5. a. Answer the following questions on the basis of law of conservation of mass.


1. State the law of conservation of mass.


2. Calculate the mass of oxygen required if 1.2g of carbon burns in the presence of oxygen to give 4.4 g of carbon dioxide gas..​

Answer 1

Answer:

1) The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.

Answer 2

Answer:

1) law of conservation of mass.

Mass can neither be created nor be destroy physical and chemical change