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March 26, 2017

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1.
Hess's law _____.

A.) makes it possible to calculate H for complicated chemical reactions

B.) states that when you reverse a chemical equation, the sign of H does not change

C.) determines the way a calorimeter works

D.) describes the vaporization of solids

Please help me. I cannot fingure this out.

Thank You

  • Chemistry - ,

    See your later post.

  • Chemistry - ,

    Did you ever get an answer??

  • Chemistry - ,

    1. Hess's law ____.
    (1 point)
    (1 pt) makes it possible to calculate H for complicated chemical reactions

    (0 pts) states that when you reverse a chemical equation, the sign of H does not change.

    (0 pts) determines the way a calorimeter works

    (0 pts) describes the vaporization of solids

  • Chemistry - ,

    The answer is A.

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