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Secondary II • 2yr.

Why do chemical changes in chemistry respect Lavoisier's law (nothing is lost, nothing is created, everything is transformed)? It seems to me that we destroy something in order to create when there is a chemical change...


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Explanations (1)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

    Team Alloprof • 2yr.

    Hello Quiet Dragon!

    Chemical changes are changes which modify the nature and characteristic properties of matter.

    However, in no case does a chemical reaction create or destroy material. Chemical reactions only rearrange the form in which matter exists. For example, a chemical reaction can change the bonds between atoms in order to create new molecules by rearranging them. It is from this idea that comes the part of Lavoisier's thought which says "everything is transformed".

    Do not hesitate if you have other questions!

    Éveline 😉

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