Balance
Silver oxide decomposes into silver and oxygen gas
Dinitrogen monoxide reacts with oxygen to form dinitrogen tetraoxide.
C2H6 + O2  CO2 + H2O
Stoichiometry
5.00 moles of silver oxide decompose, how many moles of pure silver can be produced?
15 grams of dinitrogen monoxide are reacted, how many Liters of Oxygen were consumed at the same time? (Assuming its at STP)
15 grams of C2H6 and 150 grams of oxygen are placed in a combustion vessel. What is your limiting reagent? Excess? Calculate the grams of water created, and the grams of excess reagent left after the reaction is complete.

% Comp
Which has a higher percent oxygen by mass, Nickel (III) oxide or CaCO3?
(Think: If you have a sample of nickel (III) oxide that had a mass of 100 grams, how many grams of oxygen would that be? What if you only had a 6 gram sample?)
Predict Products
Product of binary synthesis  ionic cpd
Al + F2 -
Ca + N2 
Al + S 
Product of decomp of carbonate  CO2 + metal oxide(ionic cpd)
BaCO3 
Na2CO3 
Product of decomp of chlorate  O2 + metal chloride (ionic cpd)
NaClO3 
Empirical formulas
Small whole number rations WITHIN acpd
Same emp = same % comp
C2H4 C6H6 C4H8 C6H10
Which cpd has the highest percent (by mass) of carbon?
Finding empirical formulas
RATIOS- from moles, mass, or % comp, and combustion data.

From moles
Find the empirical formula for the following
C = 0.002 moles H = 0.003 moles O= 0.0 m