Chemical Reactions Chemical reaction Format Generic Format A

Chemical Reactions

Chemical reaction Format Generic Format A + B C + D Reactants Products ü Substances being mixed üLHS of arrow üSubstance being made üRHS of arrow “Yield” = reaction taking place

Types of Chemical Reactions 5 main types of Chemical Reactions 1) Synthesis 2) Decomposition 3) Single Displacement 4) Double Displacement 5) Combustion

Synthesis means “to make” Always Generic RXN A + B C makes 1 product Real Life reaction Fe + O 2 Iron main component in steel Oxygen Fe 2 O 3 Iron (III) Oxide AKA RUST

Decomposition Generic Reaction A Only 1 Reactant B + C Real Life Reaction H 2 O 2 Hydrogen Peroxide H 2 + O 2

Single Displacement Generic Reaction Metal for a metal A + XY X + AY OR A + XY Y + XA Non-metal for a Non-metal

Single Displacement A + XY Always a Single Element X + AY Always a Compound (2 or more elements)

Single Displacement Al + HCl Single Element H 2 + Al. Cl 3 Compound (2 or more elements)

Double Displacement Generic Reaction AB + XY 2 Compounds (2 or more elements bonded together) XB + AY

Double displacement Compound 1 Compound 2 KI + Pb(NO 3)2 K and Pb switch Pb. I 2 + KNO 3

Combustion Generic reaction Cx. Hy + O 2 Hydrocarbon Burning a substance in the presence of oxygen (O 2) CO 2 + H 2 O ALWAYS EXCEPTION!!!! Incomplete combustion… your job to look this one up!

Combustion C 8 H 18 + O 2 CO 2 + H 2 O Octane Gasoline CH 3 OH + O 2 Methanol CO 2 + H 2 O