Stoichiometry

And Just hot off the press in the world of chemistry

Stoichiometry

It deals with the quantitative analysis of chemical reactions.

Basically it is a generalization of mole conversions.
Now for the basics of Stoichiometry, the six types of chemical reactions

Synthesis A+ B reacts to form AB

it is elemnts to compounds
For example 3Cl₂ + 4P reacts to form 2Cl₃P₂

ecompostion AB reacts to form A+B

Compounds to elements

Such as RhAs reacts to form Rh + As

Single Replacement A+ BC reacts to form B+ AC
as you can see the elements move around a bit
An example is K + NaCl reacts to form KCl + Na

Double Replacement AB + CD reacts to form AD + CB
an important thing to remember for both this and single replacement is that the metals and non-metals cannot switch places (ie. AB + CD reacts to form AC + BC)

For example FeS + 2HCl reacts to form H₂S + FeCl₂

Combustion a hydro carbon combustion reacts to form Co₂  and HOH

usually a reaction of hydrocarbon with the air/something in the air

ie. C₁₀H₈ + 12O₂ reacts to form 10CO₂ + 4H₂O

Neuturalization reaction between an acid and a base
Such as Li(OH) + HCl reacts to form LiCl + HOH

Well that's it, the six basic things you need to know about stoichiometry.