Methods scientists use to determine if a change was physical or chemical.

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asked Sep 15, 2017 135k views

2 Answers

Dndr · Answer 1 · 2017-09-18T11:24:34+0000

chemical reactions can be identified when there is a change in color, energy is produced, change in odor, or if new substance forms.

David Bernard · Answer 2 · 2017-09-19T02:49:18+0000

Chemical change can be determine by
change in color
energy
change in odor
rusting metal
wood burning
Physical change can be determine by
Ripping of paper
Sharpening of a pencil
Boiling of water
Melting an ice cube
Braking of glass

hope it helps

Methods scientists use to determine if a change was physical or chemical.

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