1
Q
synthesis (combination) reaction
A
two or more reactants (A and B)
combine to produce a single product (AB)
element element ➔ compound
A B ➔ AB
2
Q
decomposition
A
the breaking down of a compound into smaller compounds or separate elements compound ➔ element element AB ➔A B 2NaCl ➔ 2Na Cl2
3
Q
single replacement reaction
A
a reactive (metal or non metal ) and a compound react to produce another element and another compound element compound ➔ element compound A BC ➔ B AC where A is a metal OR A BC ➔ C BA where A is a non-metal 2Al 3CuCl2 ➔ 3Cu 2AlCl3
4
Q
double replacement
A
usually involves two ionic solutions that
react to produce two other ionic compounds.
ionic solution ionic solution ➔ ionic solution ionic solid
AB(aq) CD(aq) ➔ AD(aq) CB(s)
Pb(NO3)2 2NaI ➔ 2NaNO3 PbI2
5
Q
Neutralization (Acid-Base) Reactions
A
acid base ➔ salt water
HX MOH ➔ MX H2O
(X represents a negative ion. M represents a positive ion.)
H2SO4 Ca(OH)2 ➔ CaSO4 2H2O
6
Q
Combustion
A
the rapid reaction of a compound or element with
oxygen to form an oxide and to produce heat
hydrocarbon oxygen ➔ carbon dioxide water
CXHY O2 ➔ CO2 H2O
CH4 2O2 ➔ CO2 2H2O
