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I recognize that you can't assume that a substance's order correlates to its coefficient in a given chemical equation. Unless it is given in a problem, can you only determine the order of a substance in a general rate law when given a chart of concentrations and initial rates?
Yes. Given that only one reactant's concentration changes, you can compare how many times the reactant's concentrations changes and how many times the reaction rate changes. If the times reaction rate change is the same as that of concentration changes, it is a firsr-order reaction. If the times reaction rate change is two times as that of concentration change, it is a second-order reaction.
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