law of conservation of mass
matter is neither created or destroyed in a chemical reaction. so the number of atoms must remain unchanged in a reaction
synthesis
A+B-->AB
Decomposition
AB->A+B
single replacement
A + BC --> B + AC (use table j, an element must be more reactive to replace another element)
double replacement
AB + CD = AD + CB
combustion
an organic compound that contains C and H that reacts with oxygen and creates only CO2 and H2O
one mole
6.02 x 10^23
moles to units
multiply by 6.02 x 10^23
moles to mass
multiply by molar mass
# of moles = mass/gfm
moles to volume
multiply by 22.4 L