Law of Conservation of Mass

Explaining the law of conservation of mass.

Category:

Education

Tags:

• mass
• conservation
• chemical
• reaction

[celenabarbie]

this total helped me on my home work! :-]

[eloisaodiadamusic]

So its that simple ahaha!

I was imagining complicated things LOL

Thanks~

[thatguyinthatband]

@warhead213 Your waiter spit in your cup.

[thatguyinthatband]

@TirianB Zn = 65.4 g/mol, S = 32.1 g/mol -> ZnS = 97.5 g/mol. Every mole of ZnS made gives off 205 kJ of energy according to wikipedia in the sidebar. You have to divide by c^2 (the speed of light = 300000000 m/s)^2 which gives you 205000/3x10^16 = 6.8x10^-12 g. Compared to the mass of a mole of ZnS this number is VERY negligible. If you want it on a molecular scale, divide by 6.02x10^23 to get 1.1x10^-35. That's less than the mass of a single electron.

[61stela]

thanks it helps me...enhance my lesson..in chemistry



[sajid7091]

i want to download 

[UNITA4]

@TirianB not neccesarily, since in the example the energy release is because the zinc sulfide is a lower energy state than the zinc and sulfur alone (this has to do with valence (aka bohr) and/or nucleon shells)

[Spoofmaker2000]

Thanks so much dude:)