Explain why nonpolar molecules usually have much lower surface tension than polar ones.
The C-F bond is more polar than the N-F bond, but CF4 molecules are nonpolar and NF3 molecules are polar. Explain why.
Which is a characteristic of surface tension? a. The molecules of a liquid form a porous network at the liquid’s surface. b. The molecules of a liquid attract each other enough to prevent penetration by other molecules. c. Surface tension is the same in various types of liquids. d. Surface tension is greater in a nonpolar covalent liquid than a polar covalent liquid. Between which species will ionic bonds be present? a. two ethanol molecules b. two chloride ions c....
1st attempt M See Periodic Table Two liquids - one polar, one nonpolar - have the same molar mass. Which one has the higher boiling point? Choose one: A. The polar liquid will have the higher boiling point, since its molecules have dipole-dipole interactions. B. They will have similar boiling points, since the dispersion forces depend upon molar mass. C. The nonpolar liquid will have the higher boiling point, since its molecules are more loosely held together. D. The nonpolar...
89. Explain how a molecule that contains polar bonds can be nonpolar.97. Which of the following molecules and ions contain polar bonds? Which of these molecules and ions have dipole moments?
Polar molecules tend to have high boiling points. Explain why polar molecules require a high energy to phase change.
How many of these molecules have polar bonds, but are nonpolar molecules? PCl5 PC13 NCl3 CO2 O a) o Ob) 1 Oc) 2 O O O d) 3
Using the symmetry concept why is morphine polar or nonpolar explain.
Identify the true statements about surface tension.
Identify the true statements about surface tension. Molecules along the surface of a liquid behave differently than those in the bulk liquid. Mercury has a lower surface tension than water. Cohesive forces attract the molecules of the liquid to one another. Surface tension increases as the temperature of the liquid rises. Water forming a droplet as it falls from a faucet is a primary example of surface tension.
Do polar or nonpolar compounds travel faster on silica gel? Explain 4. Do polar or nonpolar solvents have greater eluting ability? Explain 3.
soap can be used to dissolve both polar and nonpolar substances well. Explain why.