CHO Group 17 (7A), the halogens, includes fluorine (F), chlorine (CI), bromine (Br), iodine (I), and astatine
(At). Which statement is MOST accurate concerning group 17 (7A) on the periodic table?
O They are metals.
They have 1 valence electron.
They are inert.
They are extremely reactive.

What are fructose and glucose an example of?

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?

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.