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8AE: review

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    iGCSE chemistry vocabulary
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  • Define Redox reaction
    A reaction in which electrons are transferred from one substance to another.
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  • Define Oxidation
    The loss of electrons, the addition of oxygen, or the removal of hydrogen.
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  • Define reduction
    The gain of electrons, the removal of oxygen, or the addition of hydrogen.
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  • What is an Oxidizing agent
    A substance that causes another substance to be oxidized. It gains electrons and is itself reduced.
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  • What is a reducing agent
    A substance that causes another substance to be reduced. It loses electrons and is itself oxidized.
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  • What is the oxidation number?
    A number assigned to an atom in a compound to represent its relative oxidation state.
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  • What is a displacement reaction?
    A redox reaction in which a more reactive metal displaces a less reactive metal from a solution of its salt.
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  • What type of reaction is combustion?
    Redox. The burning of a substance in oxygen, such as the combustion of methane.
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  • Give an example of a metal displacement reaction?
    The displacement of a less reactive metal from a solution of its salt by a more reactive metal, such as the displacement of copper from a solution of copper sul
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  • What is Crystallization
    The process of forming crystals from a solution.
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  • What is a salt?
    A compound formed from the reaction of an acid and a base.
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  • What is desiccation?
    The process of removing water from a a substance
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  • What is Neutralization
    The reaction between an acid and a base to produce a salt and water.
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  • What is metallic bonding?
    The type of bonding that holds metals together. It involves the sharing of free electrons between metal atoms.
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  • What is malleability
    The ability of a metal to be hammered or rolled into thin sheets.
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  • What is ductility?
    The ability of a metal to be drawn into wires.
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