Stoichiometry

• Stoichiometry is a branch of chemistry that deals with the quantitative analysis of chemical reactions.
• It is a generalization of a mole conversion to chemical reactions.
• understanding the 6 types of chemical reactions is the foundation of stoichiometry

Synthesis

• A+B-->AB
• Usually  elements ---> compounds

Ex: Na2O + H2O ---> 2NaOH

Decomposition

• AB ---> A + B
• Reverse of synthesis 

Ex; CaCO3 ---> CaO + CO2

Single Replacement

• A + BC ---> B + AC 

Ex:  Fe + CUSO4 ---> Cu + FeSO4

Double Replacement

• AB + CD ---> AD + BC
• Metals always go first

 Ex: FeCl3 + 3NaOH ---> 3NaCl + Fe(OH)3

Neutralization

• Reaction Between an acid and a base

Ex: NaOH + HCl ---> NaCl + H2O

Combustion

• Reaction of something (usually hydrocarbon) with air
• Hydrocarbon combustion always produces CO2 and H2O

Ex:  2C4H10 + 13O2 ---> 8CO2 +10H2O