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Mark’s experiment uses the reaction between baking soda and vinegar as a positive control. This is because he knows this combination produces bubbling. What results would a negative control produce?
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Mark’s experiment uses the reaction between baking soda and vinegar as a positive control. This is because he knows this combination produces bubbling. What results would a negative control produce?

User Tobalr
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A negative control would be if the baking soda was expired then it might not work.
User Mindlid
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