Which of the following experiments follow ethical standards? a.)performing test on animals when the information can be obtained in other ways. b.) experiments done to people who cannot protect themselves. c.) releasing contaminated contaminated waste into the water system. d.) research on animals in which the animal in which the animal experiences no fear or pain.

What is the equilibrium constant of aa+bb=cc+dd

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.

In which reaction is precipitation occurring?