An ion with a charge of +3 would most likely be an element in group

a.
1
b.
16
c.
18
d.
13

2.
an element in group 2 would most likely form what kind of bond?

a.
covalent
b.
ionic
c.
polar covalent
d.
hydrogen

3.
when an ion with a charge of +2 gains two electrons, it no longer is an ion.

a.
true
b.
false

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.