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PS_Ch 11 Types_Rxns PRINTABLE.ppt
1. Types of Reactions
1. Synthesis reactions
2. Decomposition reactions
3. Single displacement reactions
4. Double displacement reactions
5. Combustion reactions
You need to be able to identify each type.
7. 3. Single Displacement
Example: Zn + CuCl2
Zn
Cl
Cl
Cu +
General: AB + C AC + B
Cl
Cl
Zn Cu
+
Zn was oxidized
Went from neutral (0) to (+2)
Cu was reduced
Went from (+2) to Neutral (0)
11. Double Replacement Reactions
• Think about it like “foil”ing in algebra, first and
last ions go together + inside ions go together
• Example:
AgNO3(aq) + NaCl(s) AgCl(s) + NaNO3(aq)
• Another example:
K2SO4(aq) + Ba(NO3)2(aq) KNO3(aq) + BaSO4(s)
2
13. 5. Combustion Reactions
• Combustion reactions - a
hydrocarbon reacts with
oxygen gas.
• This is also called
burning!!!
• In order to burn something
you need the 3 things in
the “fire triangle”:
• 1) Fuel (hydrocarbon)
2) Oxygen
3) Something to ignite the
reaction (spark)
14. Combustion Reactions
• In general:
CxHy + O2 CO2 + H2O
• Products are ALWAYS
carbon dioxide and water.
(although incomplete burning
does cause some by-products
like carbon monoxide)
• Combustion is used to heat
homes and run automobiles
(octane, as in gasoline, is
C8H18)
15. Combustion
• Example
• C5H12 + O2 CO2 + H2O
• Write the products and balance the
following combustion reaction:
• C10H22 + O2
5 6
8
16. Mixed Practice
• State the type & predict the products.
1. BaCl2 + H2SO4
2. C6H12 + O2
3. Zn + CuSO4
4. Cs + Br2
5. FeCO3