Question

give an example of chemical reaction where change of smell is evident.

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Answer 1

Answer:

Evidence of chemical change

Yes; new substances formed, as evidenced by the color changes and bubbles. Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.

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Answer 2

Answer:

boiling the crystals of ferrous sulphate cause this creates a smell of odour