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Today you will need:
 Notebook
 Notes (4 Sheets from lab station #1)
 Glue
 Scissors
 Pen/Pencil
Start cutting out your little
Flintstone characters!
Synthesis, Decomposition, Single Replacement, Double Replacement, Combustion
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Chemical Reactions can be classified
into general categories based on how
the atoms in that reaction rearrange to
form the products. Double
Replacement, single replacement,
decomposition, synthesis, and
combustion are the common categories
of chemical reactions.
Fred
Betty
Wilma
Barney
Generic Form: A + BY  AY + B
Example: Sodium is placed in a solution of copper (II)
chloride. What is the resulting reaction? Sodium is
more reactive than copper, and therefore the
sodium replaces the copper in the solution and solid
copper is produced according to the following
reaction:
2Na(s) + CuCl2(aq) → 2NaCl(aq) + Cu(s)
Generic Form:
AX+ BY → AY + BX
Example: If a sample of sodium sulfate solution
were combined with a sample of barium nitrate
solution, a reaction would occur because barium
sulfate is an insoluble product according to the
following reaction:
Na2SO4(aq) + Ba(NO3)2(aq) → 2NaNO3 (aq) + BaSO4(s)
Generic Form:
A+ B → AB
Predicting Products: The two reactants are
combined into a single compound.
Example: Hydrogen gas and oxygen gas react to
form water vapor (a gas) according to the
following reaction:
2 H2(g) + O2(g)  2 H2O(g)
Generic Form:
AB → A+ B
Example: Potassium chlorate when heated
reacts to form oxygen gas and potassium
chloride according to the following reaction:
2 KClO3(s) → 2 KCl(l) + 3 O2(g)
Generic Form:
Metal + O2 → Oxidized Metal
or
Hydrocarbon + O2 → CO2 + H2O
Example: Methane gas (a hydrocarbon) and oxygen gas
react when heated to form water vapor (a gas) and
carbon dioxide according to the following reaction:
CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g)
2Fe + O2  2FeO
A.
C2H8 + O2 → CO2 + H2O Combustion RXN
B.
Al + CuCl2 → AlCl3 + Cu Single Replacement RXN
C.
NaI + Pb(NO3)2 → NaNO3 + PbI2Double
D.
Mg + O2 → 2 MgO
E.
H2O2 → H2O + O2
Decomposition RXN
F.
Pb + Cl2 → PbCl2
Synthesis RXN
G.
ZnS + HCl  ZnCl2 + H2S
H.
H2CO3  H2O + CO2 Decomposition RXN
Replacement RXN
Synthesis RXN
Double Replacement RXN
Single Replacement RXN
I.
Al + Fe3O4  Al2O3 + Fe
J.
H2 + Br2  HBr
K.
NaCl + I2  NaI + Cl2
L.
Ca(OH)2 + H3PO4  Ca3(PO4)2 + H2O
M.
Synthesis RXN
NH4OH  H2O + NH3
Single Replacement RXN
Double Replacement RXN
Decomposition RXN