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organic, biological, and nuclear chemistry.

15. in an exothermic reaction, the water will in a calorimeter.
a. drop in temperature
b. drop in volume
c. absorb heat
d. release heat

16. all the following steps need to be followed when naming alkanes, except
a. beginning numbering at the end farther from the first branch.
b. using prefixes to designate identical branches.
c. locating the longest carbon chain.
d. placing the name in alphabetic order ignoring the added prefixes.

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.