Why is burning not a physical change? When objects are burned they increase in mass. When objects are burned their chemica

Question

Why is burning not a physical change?

When objects are burned they increase in mass.
When objects are burned their chemical properties change.
When objects are burned they increase in volume.
When objects are burned they become smaller in size.

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Thanh Thu 4 years 2021-08-31T16:51:49+00:00 2 Answers 11 views 0

Answers ( )

  1. lethu
    0
    2021-08-31T16:52:53+00:00
    Reply

    I think it’s the second one

  2. phucdien
    0
    2021-08-31T16:53:14+00:00
    Reply

    I think it might be the last answer…. Or the second one. Yeah i think it’s the second one

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