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Oxana [17]
3 years ago
6

28. After 3 substances are mixed, an odor emits

Chemistry
2 answers:
Lyrx [107]3 years ago
7 0

Answer:

a. chemical change

Explanation:

A chemical change can cause an odor, however a physical change cannot, and the use of thermal energy will only make an object colder, not give it an odor.

slavikrds [6]3 years ago
3 0
I'm pretty sure that the answer is a chemical change


a physical change is only something you can see and in the chemical change it is possible to smell it.

your welcome :)
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