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  1. The following displacement is iron(2) displace copper(2) reaction. Because iron(2) is a reducing agent which donate electron to copper(2) ions, copper(2) ions reduced by accept electron to form copper(2) metal. Iron(3) ions solution...

    分類:科學及數學 > 化學 2008年03月01日

  2. ...into a tube of alcohol in a hot water bath, you will see the solution in the tube become green . The reason for putting the leaf into a tube of alcohol in a hot water bath is to speed up the destruction...

    分類:科學及數學 > 化學 2006年10月28日

  3. ... I metal or copper (which gives a green fire), which you can't get unless you're a...s possible.. 2006-11-29 22:30:10 補充: You mean putting KMnO4 solid into alcohol?? Well the solution will...

    分類:科學及數學 > 化學 2006年12月09日

  4. ... occurs. Nickel carbonate dissolves to form a green solution. 2) Some nickel carbonate did not dissolve when excess nickel carbonate...

    分類:科學及數學 > 化學 2010年05月21日

  5. 1T 2F(test for oxygen) 3F(Nitrogen is the most abundant gas in the atmosphere) 4T 5T(also dry copper(II) sulphate)

    分類:科學及數學 > 化學 2007年12月31日

  6. ...2009-12-28 15:04:38 補充: cover part of a leaf with aluminium foil and put the plant under sunlight for a few hours After that, test the leaf whether...

    分類:科學及數學 > 化學 2009年12月29日

  7. ...) sulphate solution. Displacement occurs to give green nickel(II) ion and reddish brown copper metal. Alternative answer: Put separately each of a piece of nickel and a piece of copper into 2 cm3 of dilute hydrochloric...

    分類:科學及數學 > 化學 2009年05月11日

  8. ...example, treat it with iron(III) ion, the reaction moixture changes to pale green Or Put Peroxysulfuric ion into organic compounds like propanone. ...

    分類:科學及數學 > 化學 2008年06月05日

  9. ...hole) by turning the collar. 2.Light a match and put the lighted match over the mouth of the( Bunsen... loud sound will be heard and the flame is green in colour. 3.We should turn off the gas tap immediately...

    分類:科學及數學 > 化學 2009年09月30日

  10. ...only test for presence of ions in their dry salts. when you put zinc salts in the flame, the flame will be bluish green in colour. however, it doesn't necessarily react to form ZnO. the...

    分類:科學及數學 > 化學 2012年06月29日