How many moles of \ce{ZnCl2}ZnClX
2


will be produced from 21.0 \text{ g}21.0 g21, point, 0, start text, space, g, end text of \ce{Zn}ZnZ, n, assuming \ce{CuCl2}CuClX
2


is available in excess?

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.

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro

Which of the following nuclei would be the least stable a 2 protons, 2 neutrons b 1 proton 1 neutron c 1 proton 3 neutrons d 1 proton 2 neutrons