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4 September, 20:27

Label each of the following as either a physical process or a chemical process. a. corrosion of aluminum metal. b. Melting of ice. c. Pulverizing an aspirin. d. Digesting a candy bar. e. Explosion of nitroglycerin. f. Milk turning sour. g. Burning of paper. h. Forming of frost on a cold night. i. Bleaching of hair with hydrogen peroxide. j. A copper wire is hammered flat.

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  1. 4 September, 20:55
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    A physical process is a process which do not change the substance structure only its shape or phase is changed. On the other hand, a chemical process involves the formation of new substances.

    a. corrosion of aluminum metal = chemical process

    b. Melting of ice = physical process

    c. Pulverizing an aspirin. = physical processd. Digesting a candy bar. = chemical process

    e. Explosion of nitroglycerin. = chemical process

    f. Milk turning sour. = chemical process

    g. Burning of paper. = chemical process

    h. Forming of frost on a cold night. = physical process

    i. Bleaching of hair with hydrogen peroxide. = chemical process

    j. A copper wire is hammered flat. = physical process
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