Chemistry, 28.10.2019 23:31 leeorareeves299
When heat is supplied to a solid, the molecules vibrate but do not leave their positions. why is this behavior observed? . a. molecules do not have enough kinetic energy to overcome the intermolecular bonds.. b. molecules have enough kinetic energy to overcome the intermolecular bonds.. c. molecules do not have enough kinetic energy to overcome the pressure between the molecules.. d. molecules do not have enough potential energy to overcome the pressure between the molecules.
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Chemistry, 22.06.2019 13:00
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 20:30
How many grams of phosphorus are contained in 5.09 moles of phosphorus?
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Chemistry, 22.06.2019 21:30
If 22.5 of nitrogen at 748 mm hg are compressed to 725 mm hg at constant temperature. what is the new volume?
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Chemistry, 23.06.2019 00:10
Covalent compounds: mastery test select the correct answer what is formed when atoms join together with a covalent bond? a. an ion b. a molecule c. a neutral atom d. a noble gas
Answers: 3
When heat is supplied to a solid, the molecules vibrate but do not leave their positions. why is thi...
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