Which of the following has the most atoms? A.20 grams of cesium (Cs)
B. 20 grams of chlorine (Cl)
C. 20 grams of calcium (Ca)
D. 20 grams of carbon (C)

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

Define a is a tiny pavket of energy

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.