I AM NOT SURE IF THIS IS CHEMISTRY BUT I NEED HELP ASAP I WILL GIVE BRANLIEST TO THE FIRST RIGHT ANSWER NO BOTS ALSO U WILL GET 50 POINTS

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211

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.

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer.