Chemistry, asked by rkuntal7686, 21 days ago

What observations can be made during chemical reactions

Answers

Answered by Anonymous
5

Answer:

A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change. Absolute confirmation of a chemical change can only be validated by chemical analysis of the products!

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Answered by aasimashade
2

Answer:

the colour can change

change of temperature

formation of new products

change in state

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