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Kitten_is_back

  • one year ago

Which of these changes do not involve forming or breaking chemical bonds? A. burning and melting B. rusting and cutting C. burning and digesting D. boiling and melting d

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  1. Kitten_is_back
    • one year ago
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    is d right @BrandonR and sorrry :DDDDDDDDDDDD

  2. Michele_Laino
    • one year ago
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    hint: rusting and cutting is a mechanical change

  3. YumYum247
    • one year ago
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    Indeed cutting and rusting is a physical change....

  4. Kitten_is_back
    • one year ago
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    so its rusting an d cuting?

  5. Michele_Laino
    • one year ago
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    more precisely, rusting is a chemical reaction which involves a change of number of electrons between two elements

  6. Michele_Laino
    • one year ago
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    yes! I think option B

  7. Kitten_is_back
    • one year ago
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    i'll try it

  8. YumYum247
    • one year ago
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    sounds like your taking a test :"D

  9. Kitten_is_back
    • one year ago
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    its worng and i;m doing k12 homework

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