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Types of Chemical Reactions

Types of Chemical Reactions. 8.2. Types of Reactions. Synthesis Decomposition Combustion Single Displacement Double Displacement. Synthesis Reactions. Synthesis – (also called a ___________ reaction) a rxn in which 2 or _____ substances _______ to form a new cmpd

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Types of Chemical Reactions

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  1. Types of Chemical Reactions 8.2

  2. Types of Reactions • Synthesis • Decomposition • Combustion • Single Displacement • Double Displacement

  3. Synthesis Reactions • Synthesis – (also called a ___________ reaction) a rxn in which 2 or _____ substances _______ to form a new cmpd • General form: A + B  AB • 2 small  1 _____ • Ca + Cl2 CaCl2

  4. Decomposition Reaction • Decomposition – a rxn in which a ______ cmpd breaks down to ____ two or more _______ substances • General form: AB  A + B • 2H2O(l)  2H2 (g) + O2 (g) • Above eqn uses __________ to work in the _______ direction.

  5. Combustion Reactions • Combustion = the _________ reaction of an _______ cmpd, in which ____ is released • General form: Fuel + O2H2O + CO2 + E • Fuel is a hydrocarbon, CnHn

  6. Single Displacement Reactions • Single Displacement reaction – chemical rxn in which one _______ replaces another _______ in a compound that is in ________ • General form of s.d. = A + BC  AC + B • Need to use ________ Series

  7. Activity Series • Activity Series – a list of elements organized _________ to the ease with which the elements _______ certain chemical _________. • 2Al(s)+3CuCl2(aq)2AlCl3(aq)+3Cu(s)

  8. Activity Series • The more _______ an element reacts w/other substances, the _______ its activity. • An element from _____ can displace another _____ it but not vice versa • The farther ____ the more likely the top will ______ the bottom.

  9. Double Displacement Reactions • Double displacement reaction – a rxn in which a gas, a solid ppt, or molecular cmpd forms from the apparent ________ of atoms or ions b/t 2 _________ • General form: AB + CD  AD + CB

  10. Double Displacement • 2KI(aq)+Pb(NO3)2(aq)PbI2(s) + 2KNO3(aq) • K and Pb have ________ places • Cations will displace _______ only!!!!

  11. Double Displacement • More accurately written as ___ _____ equations • Net ionic equation – equation that includes ____ those cmpds. and ions that are ________ in a chemical ______ in a rxn.

  12. Double Displacement • 2K+(aq) + 2I-(aq) + Pb2+(aq) + 2NO3-(aq) PbI2(s) + 2K+(aq) + 2NO3-(aq) • NIE= Pb2+(aq) + 2I-(aq) PbI2(s) • Ions that were _______ are: • Spectator ions – ions that remained _________ in a chemical rxn.

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