Why do we use/calculate the atoms of an element to balance an equation

[Jadaav]

Hi guys,

I wanted to know these things with their respective examples :

1. What is an atom ?

2. What is a particle ?

3. Why do we use/calculate the atoms of an element to balance an equation ?

Please answer to these questions guys, because I only have 2 days for my exams and to know them.

 

[fss]

http://en.wikipedia.org/wiki/Atom
http://en.wikipedia.org/wiki/Particle

For #3 you should be able to think about it carefully and come up with an answer.

 

[Jadaav]

thanks, was just on wikipedia though.

 

[Jadaav]

and, I wanted to know the process in steps of how to separate oil and water please

 

[Jadaav]

and how much atoms form a molecule ?

Is it 2 or more ?

 

[pzona]

Well what is a molecule, as you understand it? Check wikipedia again.

 

[Jadaav]

and what about the separating technique ?