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  1. ...vapor about 1% Since Copper metal will not make any reaction with N2 during heating, it only react... with copper. Therefore, the volume difference between the original and the resulting volume ...

    分類:科學及數學 > 化學 2008年01月18日

  2. ...soluble sulphate salts are mixed. can be used to make tofu and sculpture. naturally found as gypsum. 7. see 5.

    分類:科學及數學 > 化學 2010年10月13日

  3. ...anode used is an aluminium plate, and any common cathode can be used (usually aluminium..., the aluminium oxide layer can be made closely-packed by putting the aluminium...

    分類:科學及數學 > 化學 2006年12月18日

  4. Lemon juice contains citric acid which will make the juice acidic in nature. You can simply test it with any pH paper. However, the DJ is right that drinking...

    分類:科學及數學 > 化學 2007年02月22日

  5. ...the late 20th century, many attempts have been made to integrate the simplicity of a notebook with the editing...relatively small size in the 1990s, but they did not have any special note-taking ability. Personal digital...

    分類:科學及數學 > 化學 2008年06月25日

  6. There is no difference , alkanol is another name for alcohol...an -ol group. ie., a hydroxyl group. Any of a class of common organic ... (R) on that carbon atom make the alcohol a primary (RCH2OH...

    分類:科學及數學 > 化學 2012年08月06日

  7. ... one form of the element An element is a substance made from only one type of atom. An element cannot be broken down into any simpler substances. element carbon. It ...

    分類:科學及數學 > 化學 2006年12月14日

  8. ... recommends poly(methylene).[2] The difference is due to the 'opening up' of...polymerization. This is because ethene does not have any substituent groups which influence the stability of the propagation...

    分類:科學及數學 > 化學 2007年04月23日

  9. ...general rule. There might be exceptions but I haven't see any yet (ahh..maybe later in my career?) =D Glad to be able...

    分類:科學及數學 > 化學 2008年06月15日

  10. ...(s), NaNO3 (vi) argon - Ar(g) (b) Is there any chemical symbols for nitric acid? Why? Yes, HNO3, 2...

    分類:科學及數學 > 化學 2008年11月16日