How is the chemical formula of a compound determined?
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Chemistry, 27.08.2019 23:30, thomasbarbusca15
How is the chemical formula of a compound determined?
anyone i need it so will be grateful
Answers: 1
Chemistry, 22.06.2019 06:30, Pizzapegasus1
Three cards with holes are arranged in a straight line. a light is shined through the first cardโs hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
Answers: 1
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 18:00, meowmeowcow
Find the mass, in grams, of 5.00*10^23 molecules of f2
Answers: 3
Mathematics, 19.11.2021 19:00
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Mathematics, 19.11.2021 19:00