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Which is an example of making a qualitative observation
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Which is an example of making a qualitative observation

User Boyd
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Answer: the first one!

Explanation: measuring the speed of the chemical reaction.

User Albertodebortoli
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measuring the speed of the chemical reaction
describing how copper changes color in chlorine
recording how long it takes to burn magnesium
showing the results of an experiment with a graph
User Folse
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