Chemistry

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Standard 6 :: Science

by Syafiq - Tuesday, 12th November 2013

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what hess's law said?
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  • Momo Jiro
    Sekolah Jenis Kebangsaan (c) Kim Kee
    answered Saturday, 4th January 2014
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    the heat evolved or absorbed in a chemical process is the same whether the process takes place in one or in several steps