The rate constant for this second-order reaction is 0.180 M-.s- at 300 'C. A - products How long, in seconds, would it take for the concentration of A to decrease from 0.980 M to 0.340 M? 1= 3.55 Incorrect The rate constant for this first-order reaction is 0,210 s- at 400 "C. A products How long, in seconds, would it take for the concentration of A to decrease from 0.870 M to 0,380 M? I 2.33 Incorrect

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