Chem 2: Chemical Reactions

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Author:
dante01
ID:
308519
Filename:
Chem 2: Chemical Reactions
Updated:
2015-09-25 13:35:50
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Chem
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  1. A chemical reaction is a
    chemical change
  2. A chemical reaction occurs when
    one or more substances is converted into one or more new substances
  3. Reactant
    a substance that we start with that undergoes a change
  4. Product
    a new substance that forms during the reaction
  5. Physical clues of a chemical reaction
    • -Change in color
    • -production of light
    • -formation of a solid
    • -formation of a gas (bubbles)
    • -absorption or release of heat (flame)
  6. Decomposition
    Reactants: 1 Compound

    Products: 2 elements

    • Ex. CD------> C + D
    •     
    • 2HgO(s)----2Hg(l) + O2(g)
  7. Combination
    Reactants: 2 elements or compounds


    Products: 1 compound

    Ex. A + B -------> AB
  8. Single-displacement
    Reactants: 1 element and compound

    Products: 1 element and compound

    Ex. A + CD------> C + AD
  9. Double-displacement
    Reactants: 2 compounds

    Products: 2 compounds

    Ex. CD + EF------> CF + ED
  10. Classify as decomposition, combination, single-displacement, or double-displacement reaction:
    NH3(g) + HCl(g)------>NH4Cl(s)
    Combination
  11. Classify as decomposition, combination, single-displacement, or double-displacement reaction:
    CuCl2(aq) + Na2S(aq)------>CuS(s) + 2 NaCl(aq)
    Double-displacement
  12. Classify as decomposition, combination, single-displacement, or double-displacement reaction:

    NiSO3(s) ------->NiO(s) + SO2(g)
    Decomposition
  13. Classify as decomposition, combination, single-displacement, or double-displacement reaction:

    Ca(s) + PbCl2(aq)------>CaCl2(aq) + Pb(s)
    Single-displacement
  14. Classify this reaction

    Single displacement
  15. Classify these reactions
    Combination


    Decomposition
  16. Classify these reactions
    Single displacement


    Double displacement
  17. Classify this reaction
    Combination
  18. Classify this reaction
    Decomposition
  19. Classify this reaction
    Single displacement
  20. Classify this reaction
    Decomposition
  21. Predict Products: Platinum(IV) chloride decomposes to its elements
    PtCl4(s) → Pt(s) + 2Cl2(g)

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