Synthesis & Decomposition Reactions. Types of Chemical Reactions Most chemical reactions fall into the five families of reactions that we will be studying.

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Presentation transcript:

Synthesis & Decomposition Reactions

Types of Chemical Reactions Most chemical reactions fall into the five families of reactions that we will be studying in our course: 1. Synthesis 2. Decomposition 3. Single Displacement 4. Double Displacement 5. Combustion Today we will focus on the first two: synthesis & decomposition reactions.

Synthesis Reactions Have the skeleton form: Two or more reactants combine to form a single product. A + BAB

Synthesis Rules Two rules to follow for specific synthesis reactions: Examples: 1. Metal + O 2 Metal Oxide 2. Metal Oxide + H 2 OMetal Hydroxide 2 Ca + O 2 2 CaO Na 2 O + H 2 O2 NaOH

Decomposition Reactions Have the skeleton form: A single reactant decomposes to form two or more products. ABA + B

Decomposition Rules Three rules to follow for specific synthesis reactions: Examples: 1. Metal OxideMetal + O 2 2. Metal HydroxideMetal Oxide + H 2 O 3. Metal CarbonateMetal Oxide + CO 2 Calcium CarbonateCalcium Oxide + CO 2

Example #1 Given the reactants of the synthesis reaction below determine a) The complete word equation b) The balanced chemical equation Aluminium + Oxygen

a) Word Equation b) Balanced Chemical Equation Aluminium + OxygenAluminum Oxide Al + O2O2 Al 2 O 3 # RAtom# P Al O

Example #2 Given the reactant of the decomposition reaction below determine a) The complete word equation b) The balanced chemical equation Iron (III) Carbonate

a) Word Equation b) Balanced Chemical Equation Iron (III) CarbonateIron (III) Oxide + CO 2 Fe 2 (CO 3 ) 3 Fe 2 O 3 + # RAtom# P Fe C CO 2 O

Homework P.239 #1-4