Science, asked by boopalanboobalan, 3 months ago

list four observation that help us to determine whether a chemical reaction has takken place

Answers

Answered by ItzUrShamat

7

hєч..!!

Change of the temperature.
Change of the mass.
change of colour, physical state or smell.
generation of noise

thαnk чσu

Answered by pawankumar7126071260

0

Answer:

hhshshsuauiwiwoqoqow

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