How are mixtures and solutions different from each other?
A. there are no differences
B...
How are mixtures and solutions different from each other?
A. there are no differences
B. one combiner chemically the other combines electronically
C. They have more than one element in them
D. the mixture can be separated and the solution is not easily separated
Answers: 2
Chemistry, 22.06.2019 13:00, rome58
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.
Answers: 1
Chemistry, 22.06.2019 22:40, destineysarah
Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent
Answers: 1
Chemistry, 22.06.2019 23:30, johnnysteeler9934
The ammonia molecule in the diagram has the observed bond orientation because
Answers: 1
Mathematics, 04.09.2020 19:01