The document discusses different types of chemical reactions including synthesis, decomposition, single displacement, double displacement, and combustion. It provides examples of each type of reaction using common reactants like Na, LiCl, Ca(OH)2, KBr, H2O, C2H6, O2, Ba, and S. Rules for determining products using the activity series on the periodic table and solubility rules are also covered.

2.  Na + LiCl 
 Ca(OH) 2 + KBr 
 H2O 
 C 2 H6 + O2 
 Ba + S 

3.  Once the type is determined, use that
information to change around the reactants to
form products
 Synthesis: combine the two elements into a
compound, using the criss cross rule
Ba + S 

4.  Decomposition: break the compound down
into two elements (HOFBrINCl for diatomic
elements)
H2O 

5.  Single displacement:
 If the single element is a NON-METAL, it will
replace the NON-METAL in the compound
 If it is a METAL, it will replace the METAL in the
compound
 Use criss cross rules to determine formula
Na + LiCl 

6.  Double Displacement: swap the two metals;
in the end, they should be combined with
the opposite non-metal or polyatomic ion. Be
sure to use regular criss cross rules.
Ca(OH) 2 + KBr 

7.  Combustion: the products are always the
same – carbon dioxide and water
C2H6 + O2 

8.  Used for single displacement
 Lists the elements in order from most
reactive, on the left, to least reactive, on
the right – found on reverse of periodic table
 The single element must be MORE REACTIVE
than the element it is replacing
Ex. K + NaCl 
Cu + NaCl 

9.  Works the same as the metallic activity
series
 The halogen column on the periodic table is
in order – fluorine is the most reactive,
reactivity decreases as you move down
 Ex. NaF + Cl2 
 NaI + Br2 

10.  Often we are looking for a precipitate to be
formed in a double displacement reaction – a
solid that can be collected
 It is important to include states of matter
for double displacement:
 (aq) = aqueous; means soluble in water
 (s) = solid; means insoluble in water
 TheSolubility Rules on the back of your
periodic table allow you to determine a
chemical’s state

11.  NaOH
 AgCl
 CaCO3
 Na2CO3

12.  NaI + CaCl2 
 Ca + O2 
 MgS 
 KF + Br2 