The law of conservation of mass states that mass can neither be created nor destroyed. Interestingly, numerous ancient philosophers observed the knack for chemical and physical reactions to simply ...

Show the animation Conservation of Mass in Physical and Chemical Changes. Explain that whether a process involves melting, dissolving, or a chemical reaction, all the atoms that were there before the ...

Learn about the conservation of mass in physical and chemical reactions in this guide for students aged 11 to 14 from BBC Bitesize.

The formula of the law of conservation of mass is as follows: ∂ρ/∂t +⛛(ρv) = 0. Where, ρ = density. t = time. v = velocity ⛛ = divergence. What is the Law of Constant Proportions?

WITH reference to the letter from Mr. Sommerville in your present issue, may I state that, in the discussion at the Belfast Meeting of the British Association, I pointed out that the height in the ...