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Patterns in Chemical reactions

Patterns in Chemical reactions. 2 or more reactants form one product. Synthesis. 2 Na + Cl 2  2 NaCl. 2 Li + Br 2  2 LiBr. 1 reactant breaks down into 2 or more products. Decomposition. 2 NaCl  2 Na + Cl 2 2 LiBr  2 Li + Br 2. One element replaces another in a compound

jermaine-alford
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Patterns in Chemical reactions

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  1. Patterns in Chemical reactions

  2. 2 or more reactants form one product Synthesis 2 Na + Cl2 2 NaCl 2 Li + Br2 2 LiBr

  3. 1 reactant breaks down into 2 or more products Decomposition 2 NaCl 2 Na + Cl2 2 LiBr 2 Li + Br2

  4. One element replaces another in a compound A + BX B + AX Single Replacement + + 2 Fe + 3 CuCl2 3 Cu + 2 FeCl3 2 Na + 2 HOH (or H2O)  H2 + 2 NaOH Ni + 2 HCl H2 + NiCl2 2 F2 + 2 H2O  O2 + 4 HF

  5. Double Replacement (between aqueous ionic compounds: ions trade partners; one product is insoluble in water and precipitates) A X + B Y A Y + B X Double Replacement + + CaCl2(aq) + 2 AgNO3(aq) Ca(NO3)2(aq) + 2 AgCl(s)

  6. Combines with oxygen; most or all products contain oxygen; releases energy to environment CH4 + 2 O2 CO2 + 2 H2O + energy C3H8 + 5 O2  3 CO2 + 4 H2O + energy Combustion

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