Why is the water table important? Why is it important that ice floats when it is in water? Why is water cohesive? Why are some alcohols soluble in water? Why is polarity important? Why can water dissolve many substances? Why are the molecules of hydrocarbons nonpolar?
Explain why compounds are always homogeneous. Why is the anthroposphere unique? Why is water cohesive? Why are there no photoreceptors in the optic nerve? Why is the promoters on the noncoding strand? How are herbaceous and woody stems different?
When entering water, you need to break the surface of the water and submerge into it. At this point, we are faced with a pesky little problem calledsurface tension. Cohesive forces between water molecules are stronger at the surface. This is why it is harder to break the surface of w...
Adhesion is responsible for a meniscusand this has to do in part with water's fairly high surface tension. ... And since water molecules like to stick together, when the molecules touching the glass cling to it, other water molecules cling to the molecules touching the glass, forming the m...
repel the polar ions in water and resist wetting. The low surface energy of the coatings means that the cohesive forces in the water are strong enough to make the water bead up and not spread across the surface of the coating. Oleophobic means oil molecules are “repelled” from the surfac...
molecules and falls apart at a pretty low temperature - this despite the fact that the C-H electrons on LDPE are inherently more sticky (polarizeable) than the C-F electrons in PTFE. There is simply a lot more C-F's bumping up against C-F's in PTFE than there are C-H's bumping...
The hydrophilic lipid head groups, which are either polar or charged, repel each other and are pulled together due to hydrophobicity of the phospholipid tails to prevent water molecules from entering the lipid bilayer (Fig. 3A). This results in a strong attraction of phospholipid molecules at ...
Liquid water consists of numerous water molecules attracted to one another by cohesive forces. These molecules are in constant motion. The average rate of motion reflects the water temperature. The rate of motion for individual molecules in water will range from high to low. The distribution of ...
How does water vapor get into the atmosphere? Why do liquids evaporate at different rates? What is the reason for ice being less dense than water? Why is evaporation important? How does evaporation and condensation purify water? Why are water molecules attracted to each other?
Why liquids like ether and acetone are kept in cool places? Given the polar character of water molecules, explain how ions in the air form nucleation centers for rain droplets. Two drops of mercury when brought together coalesce into one. Explain why....