From class work and through some reasearch, I have found that water has four main properties: adhesion, cohesion, density,and polarity. However each one of those categories has a sub-categorie. Adhesion has capillary action, cohesion has surface tension, density has specific heat, and polarity contributes for water being the universal solvent. Adhesion is the ability to stick to other things, and an example of capillary action is when someone puts a straw in water the water goes up through the straw, this is because water is adhesive and the water molecules stick to the straw molecules. Cohesion in terms of water is when water molecules come together an stick to other water molecules. Because water is very cohesive it creates surface tension at the top and things like a paperclip that have a greater density than water and should sink, actually are held at the top by that tension. The density of water is 1, and anything with a greater density will sink, and anything with a smaller density will float. Specific heat is related to this because it is the "amount of energy used to raise 1 gram of a substance 1 degree celsius. Last but not least we have polarity, water is polar because of the hydrogen bonds that form intbetween covalent bonds, because of these bonds, water has a slight negative and a slight postive charge which allows it to dissolve many more things than any other solvent.
Austin, this is a great post. I really like how you took four main categories and then gave them sub categories, as it was a really good way to organize the properties of water. I also like your pictures, but the animation on the capillary action one doesn't work, which I think happened with my animated picture from the same site.
ReplyDeleteAustin, I really like your post. I never thought of the properties having sub-properties, i realized they were all very similar, but your point is very interesting. Your post is helpful and to the point.
ReplyDeleteHow is polarity related to these properties? What about hydrogen bonding? These are important traits to relate to the properties you discuss above. Also, water is considered the "universal solvent", why?
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