Instructions: select the correct answer. elements electronegativity aluminum (al) 1.61 calcium (ca) 1 carbon (c) 2.55 chlorine (cl) 3.16 fluorine (f) 4 hydrogen (h) 2.2 iron (fe) 1.83 nitrogen (n) 3.04 oxygen (o) 3.44 phosphorus (p) 2.19 potassium (k) 0.82 silicon (si) 1.9 sulfur (s) 2.58 use the chart to determine which is an example of a highly polar covalent bond. ca – cl fe – o h – s f – f
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Chemistry, 22.06.2019 14:00
Displacement is the slope of a velocity vs. time graph a. true b. false
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Chemistry, 22.06.2019 17:00
In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added
Answers: 1
Chemistry, 22.06.2019 22:30
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
Instructions: select the correct answer. elements electronegativity aluminum (al) 1.61 calcium (ca)...
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