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Classifying Chemical Reactions

Classifying Chemical Reactions. Synthesis Decomposition Single Replacement Double Replacement. this is so cool!!. 1. Synthesis. Synthesis …meaning to put together 2 (or more) reactants → 1 product first reactant second reactant product Examples:

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Classifying Chemical Reactions

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  1. Classifying Chemical Reactions Synthesis Decomposition Single Replacement Double Replacement

  2. this is so cool!! 1. Synthesis Synthesis …meaning to put together 2 (or more) reactants→1product first reactant second reactant product Examples: Ca + S → CaS 2 H2 + O2 → 2 H2O H2O + CO2 →H2CO3 +

  3. 2. Decomposition Decomposition …meaning to break apart 1reactant→2 (or more)products reactant 2 different products Examples: C2H6 → 2 C + 3 H2 2 H2O → 2 H2 + O2 +

  4. 3. Single Replacement Single Replacement …meaning to replace one element in a compound with another element (Exchange the positively charged ions or the negatively charged ions) element + compound → new compound + element reactants 2 new products element compound new compound new element Examples: Zn + 2 HCl → ZnCl2 + H2 Mg + Ca(NO3)2 →Mg(NO3)2 + Ca 2 Na + H2O → Na2O + H2 + +

  5. 4. Double Replacement Double Replacement …meaning two compounds exchange their anions (negatively charged ions) compound 1 + compound 2 [ compound 3 + compound 4 Examples HNO3 + NaCl [ NaNO3 + HCl 3 CaO + 2 AlCl3[ 3 CaCl2 + Al2O3 + +

  6. Identify the reactions as synthesis, decomposition, single replacement or double replacement • 2 Na + I2 [2 NaI • HNO3 + NaCl [ NaNO3 + HCl • 2 KBrO3[ 2 KBr + O2 • 4 K + O2 [ 2 K2O • C + O2[ CO2 • Li + KCl [ LiCl + K

  7. Identify the reactions as synthesis, decomposition, single replacement or double replacement …answers • 2 Na + I2 [2 NaI • HNO3 + NaCl [ NaNO3 + HCl • 2 KBrO3[ 2 KBr + O2 • 4 K + O2 [ 2 K2O • C + O2[ CO2 • Li + KCl [ LiCl + K

  8. Review

  9. Classification Summary Synthesis A + B [ AB 2 (or more) reactants 1 product 2 Na + Cl2[ 2 NaCl Decomposition XY [ X + Y 1 reactant 2 (or more) products 2 KClO3 [ 2 KCl + 3 O2 Single Replacement A + BC [ AB + C element + compound new compound + new element Mg + 2 HCl [ MgCl2 + H2 Double Replacement PQ + RS [ PS + RQ • compound 1 +compound 2compound 3+ compound 4 • HCl + NaNO3 NaCl + HNO3

  10. END

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