Water is a pretty amazing chemical it exists in all

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Question 9 of 254.0/ 4.0 PointsWater is a pretty amazing chemical. It exists in all three states of matter naturally on earth. In its solid (ice) form, what principal forces hold it together?A. dispersion forces onlyB. sea of electronsC. none of the aboveD. electrostatic attractionE. hydrogen bondingFeedback: In molecules where an H atom is bonded to F, O, and N, hydrogen bonding can occur in addition to van der Waals forces. For small molecules, hydrogen bonding is significantly 
stronger than van der Waals forces. 
Question 10 of 254.0/ 4.0 PointsIf I have one mole of a solid compound, what is the term used to describe how much heat is needed to melt it?
Part 2 of 2 - Part 0156.0/ 60.0 PointsQuestion 11 of 250.0/ 4.0 PointsThe experimentally measured vapor pressure of SO2at -25oC is 49.5 kPa and at 0oC is 155 kPa. Determine the enthalpy of vaporization, ΔHvap, at 100
Feedback: See Chapter 10Question 12 of 254.0/ 4.0 PointsX-rays from a copper X-ray tube, at l= 1.54062 Å, are diffracted at an angle of 11.30ofrom a sample of metallic platinum. Assuming that n = 1, what is the distance between the planes that gives rise to this reflection?
Feedback: See Chapter 10Question 13 of 254.0/ 4.0 Points
Which is expected to have the largest dispersion forces?A.C8H18B. N2C. CO2D. C2H6
Feedback: See Chapter 10Question 14 of 254.0/ 4.0 PointsRhodium has a face-centered cubic structure and has a density of 12.4 g/cm3. What is its atomic radius?
Feedback: See Chapter 10Question 15 of 254.0/ 4.0 PointsIf you wanted to synthesize a compound that had a fairly low melting point and a low density, you would want to synthesize:
Feedback: See Chapter 10

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