New Unit! Balancing Equations

Today marked the first day of the new unit: Chemical Reactions. We did balancing chemical reactions today, and it was mainly review from physical science. It's another math based chemistry unit, but I don't think it will be as heavy handed in math as it was during Chemical Composition.

Steps for balancing combustion equation:

1. Find products (should always be CO2+H2O for combustion reactions)

2. Balance carbon

3. Balance hydrogen

4. Balance oxygen last

5. Reduce all coefficients if necessary

6. NEVER change subscripts for balancing equations

Guide to physical states:

s- solid

l- liquid

g- gaseous

aq- aqueous solution (stuff dissolved into the solution)

Diatomic Elements:
hydrogen H
oxygen O
fluorine F
bromine Br
iodine I
nitrogen N
chlorine Cl

H O F Br I N Cl (Hoffbrinkle)
DON'T FORGET DIATOMICS!!!!!!! THEY ALWAYS APPEAR IN PAIRS!!!!!!

Great website for practice problems:
http://www.sciencegeek.net/Chemistry/taters/EquationBalancing.htm

Bozeman Science Balancing Equations Video