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Types of Reactions

By: Caitlin Shroyer. Types of Reactions. Exothermic reaction 6. Double Replacement Endothermic reaction 7. Combustion Synthesis Decomposition Single replacement. Citations. Endothermic Reaction:

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Types of Reactions

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  1. By: Caitlin Shroyer Types of Reactions Exothermic reaction 6. Double Replacement Endothermic reaction 7. Combustion Synthesis Decomposition Single replacement

  2. Citations Endothermic Reaction: Info: http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemtype.htm Picture: http://jchemed.chem.wisc.edu/jcesoft/cca/CCA3/MAIN/ENDO2/PAGE1.HTM Exothermic Reaction: Info: http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemtype.htm , Picture: http://en.wikipedia.org/Exothermic_reaction Synthesis: Info: http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemtype.htm Picture: http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA3/STILLS/NACL/NACL1/64JPG48/20.JPG Decomposition: Info: http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemtype.htm Picture: http://wildeboer-fitch.wikispaces.com/Media-+Chemical+Rx#toc17 Double Replacement: Info: http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemtype.htm Picture: http://wildeboer-fitch.wikispaces.com/Media-+Chemical+Rx#toc23 Single Replacement: Info: http://www.usoe.k12.ut.us/CURR/Science/sciber00/8th/matter/sciber/chemtype.htm Picture: http://wildeboer-fitch.wikispaces.com/Media-+Chemical+Rx Combustion: Info: http://www.marymount.k12.ny.us/marynet/stwbwk05/05flashchem/lyreaction/lyreaction.html Picture: http://wildeboer-fitch.wikispaces.com/Media-+Chemical+Rx

  3. Exothermic Reaction • Release energy in the form of heat, light ,or sound • May occur spontaneously and result in higher randomness of entropy of the system • May produce heat or may even be explosive Fe2O3 + 2Al -> 2Fe + Al2O3 + Heat

  4. Endothermic Reaction • They must absorb energy in order to proceed • Can not occur spontaneously • They absorb energy as the temperature drop is measured during the reaction. Ba(OH)2.8H2O (s) + 2 NH4SCN (s) --> Ba(SCN)2 (s) + 10 H2O (l) + 2 NH3 (g)

  5. Synthesis • Two or more simple substances combine to form a more complex substance • As two or more reactance yielding one product is another way to identify a synthesis reaction 2Na + Cl2 --> 2NaCl

  6. Decomposition • This reaction has a more complex substance that breaks down into more simpler parts • Synthesis and decomposition are opposite reaction 2 NaHCO3 --> NaCO3 + H2O + CO2

  7. Single Replacement • Single uncombined element • Two reactants yeild to or more products Zn + 2HCl --> ZnCl2 + H2

  8. Double Replacement • Two compounds switch places to form a new compound. • Two reactants yield two products BaCl2 + Na2SO4 --> BaSO4 + 2NaCl

  9. Combustion • A chemicals that involve oxygen and produces energy( heat) so rapidly that flames are shown. • Is a reaction that includes oxygen dioxide and water. 2Mg + O2 --> 2MgO

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