Consider the reaction below.
2H20 → 2H2 + O2
How many moles of hydrogen are produced when 6.28 mol of oxygen form?
3.14 mol
O 6.28 mol
12.6 mol
0 25.2 mol

Which of these best describes an ionic bond?

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.

Which of the following is a physical property flammability heat of combustion solubility and toxicity