Isomers are: a. compounds with the same molecular formula but have their atoms connected in a different sequence. b. molecules that are integral multiples of the empirical formula. c. structures that show the bonding in molecules using dashes or dots to represent electrons. d. none of the above

Explanation for basic character?

What is the polyatamic ion of borate

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.