Zero Charge Rule
Sodium chloride
NaCl
Mg + Cl2 ->
MgCl2
K + Cl2 -> KCl
2; 1; 2
Ca(OH)2; soluble or insoluble?
Soluble
The ions within a solution that are not a part of the precipitate.
Spectator ions
Calcium oxide
CaO
2HCl + 2Na ->
2NaCl + H2
HCl + Ca(OH)2 -> H2O + CaCl2
2; 1; 2; 1
Identify the precipitate:
NiBr2(aq) + Na2(CO3)(aq) ->
Ni(CO3)
A chemical reaction where one substance is combined with another substance to form one new substance.
Synthesis reaction
Aluminum oxide
Al2O3
2K(NO3) + CaO ->
K2O + Ca(NO3)2
Zn + CuI2 -> ZnI2 + Cu
1; 1; 1; 1
Write the molecular equation for the precipitation rxn between aluminum chloride and lithium phosphate.
AlCl3(aq) + Li3(PO4)(aq) -> Al(PO4)(s) + 3LiCl(aq)
A chemical reaction where an acid and a base form a salt and water
A neutralization reaction
silver phosphate
Ag3(PO4)
SO2 ->
S + O2
Ag(NO3) + K2(CrO4) -> Ag2(CrO4) + K(NO3)
1; 1; 1; 1
Write the net ionic equation for the formation of the precipitate, lead (II) hydroxide.
Pb2+ + 2(OH-) -> Pb(OH)2(s)
The chemical formula for hydrobromic acid
HBr
Ammonium chlorate
(NH4)(ClO3)
2C5H10 + 15O2 ->
10CO2 + 10H2O
Na(CN) + H2(SO4) -> Na2(SO4) + H(CN)
2; 1; 1; 2
Write the ionic equation for the following rxn:
(NH4)2(SO4)(aq) + Ba(NO3)2(aq) -> Ba(SO4)(s) + 2(NH4)(NO3)(aq)
2NH4+ + (SO42-) + Ba2+ + 2(NO3-) -> Ba(SO4)(s) + 2NH4+ + 2(NO3-)
A chemical reaction where a hydrocarbon is reacted with excess oxygen.
Combustion