A reactant decomposes with a half-life of 115 s when its initial concentration is 0.289 M. When the initial concentration is 0.550 M, this same reactant decomposes with the same half-life of 115 s. What is the order of the reaction? O 2 00 What is the value and unit of the rate constant for this reaction? Units:

Q: half-life

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Q: half-life

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