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  1. ... an electron from O atom will lead to a half- filled 2p subshell which exhibits extra stability, and thus less.... A redox reaction involves the change in oxidation number, while an acid-base reaction ...

    分類:科學及數學 > 化學 2016年02月21日

  2. ...false Sodium sulphate dissolves in water to give a clear solution, but does not react with potassium...gaseous particles. This leads to decrease in concentration of the brown nitrogen dioxide gas, and thus the ...

    分類:科學及數學 > 化學 2015年03月21日

  3. ... Nitrate. Ammonium Nitrate dissolving in water is endothermic. b).defrosting is endothermic. 2.K...

    分類:科學及數學 > 化學 2013年11月27日

  4. ... OF (+) has 12 electrons in outermost shells (2s)* (2p)* ↑ ↑ (2p) ↑↓ ↑↓ (2s) ↑↓ (2s)* ↑↓ (2s) ↑↓ 96. fill up the MO diagram after counting the number...

    分類:科學及數學 > 化學 2013年11月05日

  5. Iodine is ___more soluble___ in heptane than in aqueous potassium iodide solution, thus some of the __iodine__ in the __aqueous__layer is extracted into __heptane___ layer.

    分類:科學及數學 > 化學 2013年10月17日

  6. ... 750 mmHg and the mercury levels in the manometer is 9.5 mmHg depressed...have two containers of the same size; one is filled up with N2 and the other with CO2 at the room...

    分類:科學及數學 > 化學 2013年10月18日

  7. ...natural world works. 2. Scientists (科學家) are people who work in science. They make hypothesis (假說) and sometimes by doing...

    分類:科學及數學 > 化學 2013年09月04日

  8. ...and (viii) c) Group III because there are 3 electrons in the outermost shell of the atom. d) (ix) is the positive ion of (x).

    分類:科學及數學 > 化學 2013年08月27日

  9. ...: Some photographic flashes and stroboscopic lamps are filled with xenon as the flash lamps. It is also used in some lamps and nuclear reator. Radon: It is always ...

    分類:科學及數學 > 化學 2013年08月09日

  10. ...and airships can float on air when they are filled with He. However, the molar mass of Xe...float on air. 2. Mg will react with the O2 in air when it is burnt ,with the equation ...

    分類:科學及數學 > 化學 2013年04月21日