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QUESTION 7

  1. Determine if the following are physical properties or changes; or chemical properties or changes.

    The meltingpoint of gold is10640

    Hydrochloricacid is corrosive to many metals.

    Adding soap to water helps remove unwanted organic materials.

    Inrigormortis, muscle tissue become stiff.

    Humectants can form a coating that prevents formalin from reaching tissues.

    Anticoagulants can prevent blood from clotting byprecipitating calcium out of the blood.

    Buffers prevent rapid changes in pH (acidity orbasicity) of blood.

    Adding a deodorant reduces the smell of decomposition.

    A.

    Chemical Change

    B.

    Chemical Property

    C.

    Physical Change

    D.

    Physical Property

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