PDF Notes: Study Guide for Redox and Types of Reactions 26

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    What are the 3 main chemical reactions?

    They include synthesis, decomposition, and displacement.

    What are the 5 types of reactions?

    Synthesis, decomposition, single displacement, double displacement, and combustion.

    What is the reverse of a synthesis reaction?

    It is a decomposition reaction.

    What is a combustion reaction?

    It always has oxygen as a reactant.

    What happens in a single displacement reaction?

    One element replaces another in a compound.

    How do you decide if a single displacement reaction will take place?

    Check the reactivity of the elements involved.

    What are the two different ways a single displacement reaction can occur?

    Metal displaces metal or nonmetal displaces nonmetal.

    What do double displacement reactions produce?

    They produce a precipitate, gas, or water.

    What is a precipitate?

    It is an insoluble solid formed from a reaction.

    What defines a redox reaction?

    It involves the transfer of electrons between reactants.

    What is oxidation?

    It is the loss of electrons from a reactant.

    What is reduction?

    It is the gain of electrons by a reactant.

    What happens to the oxidation number when an atom is reduced?

    The oxidation number decreases.

    What are neutralization reactions?

    They involve an acid and a base producing water and a salt.

    What are the products of a neutralization reaction?

    Water and a salt are always produced.

    What must be present to produce CO2 in a neutralization reaction?

    A carbonate must be present.

    What is the role of the anode in a voltaic cell?

    It is where oxidation occurs.

    What is the role of the cathode in a voltaic cell?

    It is where reduction occurs.

    What happens to the size of the cathode in a voltaic cell?

    It gets bigger as it gains mass.

    What happens to the size of the anode in a voltaic cell?

    It gets smaller as it loses mass.