Consider the mechanism. Step 1: A ⟶ B + C slow Step 2: C + D ⟶ E fast Overall: A + D ⟶ B + E Determine the rate law for the overall reaction, where the overall rate constant is represented as k .

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?