Question #b01f2

Question

858 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-11-15T01:18:42

Equation Balancing...

All elements like to form stable formations, sometimes via single atoms like the Noble gases (He, Ne, Ar etc.) but more often as molecules.

Take Hydrogen for example: a single H-atom has one valence electron. it therefore combines with another H-atom to form a molecule: $H_2$ .

The same goes for a lot of other elements, especially in Organic Chemistry.

If you write an equation, the number of atoms of a certain element (every element in fact) needs to be the same on both sides of the equals-sign.

If, for instance you have an equation like :

$X + Y rightleftharpoons C +H$ ,

then you obviously that to double the amounts of both sides:

$2X + 2Y rightleftharpoons 2C +H_2$ ,

Now there is no free H-radical anymore on the right hand side, but a "stable" $H_2$ - molecule...