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  1. ... place. h. Corrosive Substances which may destroy living tissues upon contact. Examples: Hydrogen...

    分類:科學及數學 > 化學 2007年06月06日

  2. ... than natural gas. 2. Energy cannot be created or destroyed . It can only be converted from one form to another form(s). In...

    分類:科學及數學 > 化學 2008年05月14日

  3. ...many people. 1b) Insecticides (殺蟲劑) kills bugs which would destroy crops. This increases agricultural (農業的) yield (產量). ...

    分類:科學及數學 > 化學 2013年09月22日

  4. ...and preparations which may, on contact with living tissues, destroy them; (h) irritant: non-corrosive substances and preparation (參考...

    分類:科學及數學 > 化學 2015年04月28日

  5. ... acid and nitric acid, they form an acidic ‘rain’ which can destroy vegetation. Some of these gases are from natural sources...

    分類:科學及數學 > 化學 2008年06月30日

  6. ... is also correct. D is in correct. Chlorine can destroy the structure of silk. 4: The answer is B. Cl2(aq...

    分類:科學及數學 > 化學 2009年03月29日

  7. ... since fully filled shells/sub-shells have extra stability. Destroying this electronic structure needs extra energy. Also the removal of the ...

    分類:科學及數學 > 化學 2007年03月31日

  8. ...such as H2SO3 and H2CO3. Those solutions dissolve and destroy the mesophyll cell so that the plants die. And hence the havesting yield...

    分類:科學及數學 > 化學 2007年02月09日

  9. ... that a significant fraction of the fuel is consumed before the weapon destroys itself. The amount of energy released by fission bombs...

    分類:科學及數學 > 化學 2006年11月11日

  10. ...; and destructive plate boundaries at which ocean crust is destroyed by subduction back into the mantle. All three of these phenomena tend...

    分類:科學及數學 > 化學 2008年02月02日