

| Subject: | Re: it's Friday, she blew the microwave up |
| From: | Bob Stevens |
| Date: | Fri, 24 Sep 2010 11:28:19 -0600 |
> > > > not splitting hairs, just being accurate. > > "water is the universal solvent" > > not water plus anything else. > > > alistair > Why use ignorance when there is so much simple scientific fact available? Uhhhh, does it say "solvent" somewhere in this factual statement? > Chemically, water is a compound of hydrogen and oxygen, having the formula > H2O. It is chemically active, reacting with certain metals and metal > oxides to form bases, and with certain oxides of nonmetals to form acids. It > reacts with certain organic compounds to form a variety of products, e.g., > alcohols from alkenes. Because water is a polar compound,* it is a good > solvent.* Although completely pure water is a poor conductor of > electricity, it is a much better conductor than most other pure liquids > because of its self-ionization, i.e., the ability of two water molecules to > react to form a hydroxide ion<http://www.infoplease.com/ce6/sci/A0825403.html>, > OH-, and a hydronium ion, H3O+. Its polarity and ionization are both due > to the high dielectric constant of water. > > Water has interesting thermal properties. When heated from 0�C, its melting > point, to 4�C, it contracts and becomes more dense; most other substances > expand and become less dense when heated. Conversely, when water is cooled > in this temperature range, it expands. It expands greatly as it freezes; as > a consequence, ice is less dense than water and floats on it. Because of > hydrogen bonding between water molecules, the latent heats<http://www.infoplease.com/ce6/sci/A0828957.html> of > fusion and of evaporation and the heat capacity<http://www.infoplease.com/ce6/sci/A0823127.html> of > water are all unusually high. For these reasons, water serves both as a > heat-transfer medium (e.g., ice for cooling and steam for heating) and as a > temperature regulator (the water in lakes and oceans helps regulate the > climate). > Bob ... welcome to Fryedaye. Was there a thread recently about how much of a "cooperative, caring family" this list is? Get over yourselves. Most LARGE family's have individuals with narcissistic personality disordered volks in them. > > > Read more: water: Chemical and Physical Properties � Infoplease.com<http://www.infoplease.com/ce6/sci/A0861882.html#ixzz10T7civQ4> > http://www.infoplease.com/ce6/sci/A0861882.html#ixzz10T7civQ4 > >
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