Question

Observations that help determine a chemical reaction

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Answer 1

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A chemical reaction can be determined with the help of any of the following observations:-

a) Evolution of a gas

b) Change in temperature

c) Formation of a precipitate

d) Change in colour

e) Change of state

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Answer 2

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Observations that help determine a chemical reaction are:-

a) Evolution of a gas

b) Change in temperature

c) Formation of a precipitate

d) Change in colour

e) Change of state