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conservation of mass

/ˌkɒnsəˈveɪʃən əv mæs/

翻译: 质量守恒定律:在一个封闭系统中,物质的总质量在普通化学反应或物理过程中既不能凭空产生,也不能凭空消失,只能从一种形式转化为另一种形式。

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/ˌkɒnsəˈveɪʃən əv mæs/C1formalscientific
  • zh质量守恒定律:在一个封闭系统中,物质的总质量在普通化学反应或物理过程中既不能凭空产生,也不能凭空消失,只能从一种形式转化为另一种形式。

A fundamental scientific principle stating that mass cannot be created or destroyed in a closed system through ordinary chemical or physical processes; it can only change forms.

  1. Physical LawB2formal

    A fundamental principle of physics stating that mass cannot be created or destroyed in a closed system through ordinary chemical or physical changes.

    zh质量守恒定律

    • The conservation of mass explains why the total weight of the reactants equals the total weight of the products in a chemical reaction.
    • According to the conservation of mass, the amount of matter remains constant during a phase change.
    • Students learn about the conservation of mass in introductory chemistry classes.