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Year 12 Chemistry

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  • In a Daniell cell, at which electrode does oxidation occur?
    Anode
  • What is the term for the process where non-spontaneous redox reactions are produced using the passage of electrical energy?
    Electrolysis
  • What is the term form a substance that conducts electrical energy as a result of dissociating negative and positive ions
    Electrolyte
  • What is the difference between complete and incomplete combustion?
    Complete combustion takes place with sufficient oxygen, and produces CO2 as a product. Incomplete combustion has oxygen as a limiting reagent.
  • What type of intermolecular force exists between molecules where a H atom is covalently bonded to O?
    Hydrogen Bond
  • What is meant by the term "equilibrium"?
    The point in a reversible chemical reaction where the rate of the forward and backward reactions are equal
  • What type of reaction results in a negative enthalpy number?
    Exothermic
  • What is fracking?
    The process of injecting sand, water, or chemicals at high pressure into coal or rock to release natural trapped gas
  • What is the term of a chemical species that donates electrons in a redox reaction?
    Reductant
  • What is an electrode?
    A solid conductor in a half cell at which oxidation or reduction reactions occur
  • State Le Chatelier's Principle
    If a system at equilibrium is subjected to a change, the system will adjust to partially oppose the effect of the change
  • What is the activation energy of a reaction?
    The minimum energy required by reactants for a reaction to occur in order to break the bonds between reactant atoms.
  • What is meant by "ignition point"?
    The lowest temperature at which a liquid or gas will spontaneously ignite without the application of an external ignition source
  • What is an irreversible reaction?
    A reaction that can only occur in one direction
  • What is the general equation for Kc?
    [products]/[reactants]
  • What is the term of a chemical species that accepts electrons in a redox reaction?
    Oxidant
  • In a Daniell cell, at which electrode does Reduction occur?
    Cathode
  • What type of reaction results in a positive enthalpy value?
    Endothermic
  • What is Collision Theory?
    A theoretical model that accounts for the rates of chemical reactions in terms of collisions between particles occurring during a chemical reaction.
  • What is the universal gas equation?
    PV=nRT
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