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To test the effect of acid concentration on reaction time which variable is most essential to keep the same?

Answer and explanation

Correct answer: Surface area of the solid reactant

Surface area affects reaction rate so it should be kept constant. Acid concentration should remain the only independent variable.

Related tags

VariablesReaction RateControlled VariableAcid ConcentrationVariables In An ExperimentExploration: Entering The World Of Secondary ScienceExploration Entering The World Of Secondary ScienceScience

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