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25 October, 12:15

Five kinds of physical and chemical changes?

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  1. 25 October, 15:19
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    A physical change to metal rod: it bent

    a chemical change to a metal rod: it rusted

    the difference between the two changes is when something (an element) undergoes a chemical change some type of chemical reaction changes the element but the change isnt always visable but if the change is physical like a bent metal rod the change has effected the element physically meaning visable
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