Asolution has which of the following properties?
the top layer is different in composition than the bottom layer,
the average diameter of its solute particles usually is less than 1 nm.
gravity separates its parts,
filter can remove the solute.
a filter can remove the solute.

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

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.