Determine el número de átomos de oxígeno en 200 g de sulfato de cobre (CuSO4)

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

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.

Nan element’s square on the periodic table, the number with the greatest numerical value represents the