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Oh Noes! Not Dihydrogen Monoxide!

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  • #61
    Originally posted by Kucinich
    CaO isn't a molecule. Molecules are formed with COVALENT bonds only.
    That is so wrong I can't even tell you how wrong you are.
    (\__/) 07/07/1937 - Never forget
    (='.'=) "Claims demand evidence; extraordinary claims demand extraordinary evidence." -- Carl Sagan
    (")_(") "Starting the fire from within."

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    • #62
      Hmmm, my textbook and my teacher say it is correct. UR, who has no chemistry credentials that I know of, says "it's wrong". Who do you think I should trust?

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      • #63
        In chemistry, the molecule is the smallest indivisible portion of a pure compound that retains a set of unique chemical and physical properties.
        Check the link in my previous post.

        What do you call CaO? A couple of atoms just love to huddle together?
        (\__/) 07/07/1937 - Never forget
        (='.'=) "Claims demand evidence; extraordinary claims demand extraordinary evidence." -- Carl Sagan
        (")_(") "Starting the fire from within."

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        • #64
          An ion.

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          • #65
            ions can be molecules or atoms. They just have a + or - charge.
            I'm consitently stupid- Japher
            I think that opinion in the United States is decidedly different from the rest of the world because we have a free press -- by free, I mean a virgorously presented right wing point of view on the air and available to all.- Ned

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            • #66
              Kucinich,

              CaO - Calcium Oxide is definitely a molecule. The fact that it is an ionic bonded molecule has no bearing other than to describe the type of molecule it is.

              If you are inferring that b/c it is ionically bonded it can form ions in dyhydrogen monoxide, that may be true but has no bearing on the fact that this particular salt is indeed a molecule.

              If your teacher has issue with this have him or her give me a shout. I think perhaps somethingisgettinglost in translation.
              "Just puttin on the foil" - Jeff Hanson

              “In a democracy, I realize you don’t need to talk to the top leader to know how the country feels. When I go to a dictatorship, I only have to talk to one person and that’s the dictator, because he speaks for all the people.” - Jimmy Carter

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              • #67
                Salts are not molecules. A molecule is defined by having covalent bonds.
                The enemy cannot push a button if you disable his hand.

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                • #68
                  CI,

                  Since when?

                  Salts most definitely are molecules. Do a simple search on Ionically bonded molecules.

                  Matter of fact there is a whole branch of chemistry associated with Inorganic Chemistry that speaks to molecules not having covalent bonds.

                  Believe me I've been doing this stuff 17 + years.
                  "Just puttin on the foil" - Jeff Hanson

                  “In a democracy, I realize you don’t need to talk to the top leader to know how the country feels. When I go to a dictatorship, I only have to talk to one person and that’s the dictator, because he speaks for all the people.” - Jimmy Carter

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                  • #69
                    From what I have learned salts are not molecules. A good example of the difference is to compare NaCl (a salt) with sucrose (a molecule). If you dissolve sucrose in water, you will get sucrose molecules dissolved in water. When you dissolve NaCl, you will not get dissolved NaCl molecules, but rather their ionic components dissolved in water.

                    However, I guess that compounds with stronger ionic bonds may be regarded as molecules. There's probably a grey area where you could define a given compound as both a "salt" or as a "molecule", depending on your taste

                    If you have been doing science for a long time, I assume you too know that one should be very careful with phrases like "most definitely"
                    The enemy cannot push a button if you disable his hand.

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                    • #70
                      CI,

                      The property of dissociation of ionically bonded molecules in dihydogen monoxide does not change the fact that there are three forms of molecular bonding.

                      Ionic, covalent, and polar covalent bonding. (Most folk do not recognize hydrogen bonding a chemical bond but some add that one in as a fourth).
                      "Just puttin on the foil" - Jeff Hanson

                      “In a democracy, I realize you don’t need to talk to the top leader to know how the country feels. When I go to a dictatorship, I only have to talk to one person and that’s the dictator, because he speaks for all the people.” - Jimmy Carter

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                      • #71
                        CaO calcium oxide
                        CO carbon monoxide

                        Traditional nomenclature varies

                        Molecules do not have to be covalently bonded; consider the case of multimeric enzymes.
                        We need seperate human-only games for MP/PBEM that dont include the over-simplifications required to have a good AI
                        If any man be thirsty, let him come unto me and drink. Vampire 7:37
                        Just one old soldiers opinion. E Tenebris Lux. Pax quaeritur bello.

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                        • #72
                          But they are separate molecules held together by various non-covalent interactions.
                          Or do you suggest that the lipid bilayer (the cell membrane) is one single molecule?

                          I don't really want to discuss this further, it's all just a matter of definitions anyway. Since definitions are made by people they will never fully comply with reality
                          The enemy cannot push a button if you disable his hand.

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                          • #73
                            Nice threadjack!!
                            Apolyton's Grim Reaper 2008, 2010 & 2011
                            RIP lest we forget... SG (2) and LaFayette -- Civ2 Succession Games Brothers-in-Arms

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                            • #74
                              Oh no! The sky is falling! The sky is falling!

                              or... at the very least solid Dihydrogen Monoxide crystals.

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                              • #75
                                Originally posted by Combat Ingrid
                                But they are separate molecules held together by various non-covalent interactions.
                                Or do you suggest that the lipid bilayer (the cell membrane) is one single molecule?

                                I don't really want to discuss this further, it's all just a matter of definitions anyway. Since definitions are made by people they will never fully comply with reality
                                It is just a matter of definitions. Multimeric enzymes are called 'molecules' despite their being made up of smaller non-covalently linked molecules.
                                We need seperate human-only games for MP/PBEM that dont include the over-simplifications required to have a good AI
                                If any man be thirsty, let him come unto me and drink. Vampire 7:37
                                Just one old soldiers opinion. E Tenebris Lux. Pax quaeritur bello.

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