am7elinsLe9elrebac am7elinsLe9elrebac

26-03-2017
Chemistry

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List four common signs that a chemical reaction has occurred.

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DWS0810 DWS0810

26-03-2017

Not sure if this is correct but here's my answers.
1. Colour change.
2. Change in volume of reactant.
3. Effervescence formed.
4. pH change.
5. Temperature change.

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