contestada

Which of these is not an example of a physical change?
a. a nail rusting
b. a rock cracking
c. blowing up a balloon
d. stretching a piece of clay

Respuesta :

SchooledBoy
a nail rusting is an example of chemical change as the iron is oxidized to become rust. This is not a physical change.
a. a nail rusting is not a physical change its a chemical change

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