dderman1512 dderman1512

20-01-2017
Chemistry

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Which of the following provides evidence that a chemical change has taken place?

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Claudia777 Claudia777

20-01-2017

1) Bubbles appear
2) Change of odour
4) A precipitate is formed
5)Change in temperature

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20-01-2017

1,2, and 4 (which I assume was supposed to say 3)

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