091908 - Writing Chemical Equations for Solutions Molecular...

Writing Chemical Equations for Solutions
y
Molecular Equation – all reactants and products
listed as molecules
y
Complete Ionic Equation – all ionic reactants and
products separated into ions
y
Net Ionic Equation – ions and molecules that are the
same on both sides of the equation are removed

Has a reaction occurred?
y
For a reaction to occur something has to happen
1.
Form an insoluble salt
2.
Form a gaseous product that escapes
3.
Form a weak or non-electrolyte
4.
An oxidation-reduction occurs with a transfer of
electrons

Types of Reactions
y
Precipitation Reaction – form an insoluble solid
y
Acid-Base Reaction – one substance donates a
proton and one substance accepts a proton
y
Gas Evolution Reaction – gaseous product forms and
escapes
y
Oxidation-Reduction Reaction – a transfer of
electrons from one element or ion to another

Solubility Rules

Precipitation Reaction

Precipitation Reaction

Predicting Product
y
FeSO
4
(aq) + KCl (aq) →
y
Al(NO
3
)
3
(aq) + Ba(OH)
2
(aq) →