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Chemical Reactions

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Chemical Reactions

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    1. Chemical Reactions The 5 Basic Classifications

    2. SYNTHESIS A reaction in which two or more reactants yield a single product. Also called composition or combination General Equation A + B ? AB EX: 2 Li + Se ---> Li2Se

    4. One or more reactants combine with oxygen releasing heat or light Any combustion reaction must include the reactant oxygen, O2 General Equation: A + O2 ? AO

    5. Single Replacement Sometimes called Displacement One element replaces a similar element in a compound

    6. Double Replacement Reaction that has the interchanging of two ions from two different compounds. general form: AB + CD----> AD + CB Example: Pb(NO3)2 + 2 KI ----> PbI2 + 2 KNO3

    7. Double Replacement Equation consists of two reactants that have both a cation and anion. During a reaction the cations (or anions) switch places. The products usually consist of a precipitate.

    8. Reaction Checklist 1) Is O2 a reactant? (combustion) 2) One product? (synthesis) 3) One reactant? (decomposition) 4) Is an element being replaced? (single) 5) 2 switches? (double)

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