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  1. ...^2-. 2011-04-02 19:52:52 補充: For Pb(NO3)2, to be more precise , the CO3^2- ion can be determined since PbCl2 is yellow...

    分類:科學及數學 > 化學 2011年04月08日

  2. ...3. Specific heat capacity of the product solution is assumed to be the same as that of water 4. Thermometer used in laboratory is not precise eough And therefore, the experimental enthalpy change of neutralization is usually...

    分類:科學及數學 > 化學 2006年11月04日

  3. ... RA and stronger RA = weaker OA. the only precise way to predict the reaction is by checking the e.c.s.(electrochemical series). A reaction will occur only...

    分類:科學及數學 > 化學 2007年04月28日

  4. ... standard atmosphere for general use and affirmed its definition of being precisely equal to 1,013,250 dynes per cm2 (101,325 Pa). This value is ...

    分類:科學及數學 > 化學 2007年05月09日

  5. ... specific gravity ranges of 1.0–0.95, 0.95–0.9 etc — to provide more precise measurements. Its unit is density unit (即?? units)

    分類:科學及數學 > 化學 2008年08月16日

  6. ...4− → FeO(OH)2− · H2O is more precise . Assume that the reactions are able to take place. 6FeSO4 + Cl2 + 8NH4+ + 8OH- > 2Fe2...

    分類:科學及數學 > 化學 2008年09月04日

  7. ... cylinder is not used because it is not precise enough to prepare a standard solution, so the answer is 2... water. Finally, add water to the volumetric flask to make a 250cm^3 standard solution.

    分類:科學及數學 > 化學 2008年04月14日

  8. The first one is volumetric flask 圖片參考:http://www.jaytecglass.co.uk/images/...

    分類:科學及數學 > 化學 2010年05月31日

  9. ... to describe several ways by which acid falls from atmosphere to the ground. The precise term is "acid deposition". It can be divided into two classes...

    分類:科學及數學 > 化學 2006年12月05日

  10. ...strictly and also is applied to charged organic molecules.... Molecules are distinguished from polyatomic... were less precise defining molecules as...

    分類:科學及數學 > 化學 2007年07月27日