Chemistry, 19.08.2019 07:50, BOYAWESOME0202
An 80.0 g sample of iodine-131 was placed in a sealed vessel forty days ago. only 2.5 g of this isotope is now left. what is its half-life?
Answers: 2
Chemistry, 22.06.2019 10:40, trinityanne1738
Asolid that forms and separates from a liquid mixture is called
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Chemistry, 22.06.2019 16:00, rorymartin04
No copying 15 pts how does a free-body diagram tell you about the net force on an object?
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Chemistry, 22.06.2019 22:30, pookie879
You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.
Answers: 3
An 80.0 g sample of iodine-131 was placed in a sealed vessel forty days ago. only 2.5 g of this isot...
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