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        <div id="content-top1">Page 154 - ulum_g10</div>
        <div id="content-top2">P. 154</div>
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    <pre style="white-space:pre-line"><code>Ï€Â°Ã¼Ã˜dG Ã¡âˆÃ„Â°SGC

Ã¡jÃµÂ«âˆâ€šâ€™E G Ã¡Â¨âˆdG  Ã¡Â«HÃ´Â©dG Ã¡Â¨âˆdG                        : Ã¡Â«ÂªâˆÂ©dG Ã¤Ã‰Ã«âˆÂ£Â°Ã¼Å¸G : â€™hGC
                  IQGÃ´Ã«âˆd OQÃ‰Â£dG
Exothermic                        Ã¡jÃµÂ«âˆâ€šâ€™E Gh Ã¡Â«HÃ´Â©dG ÃšÃ Â¨âˆdÃ‰H Ã–Â°SÃ‰Ã¦Å¸G Ã­âˆÂ£Â°Ã¼Å¸G Ã–Ã cGC

                                                                      Ã­âˆÂ£`Â°Ã¼ÂªdG
                                                Ï€YÃ‰Ã˜Ã dÃ‰H IQGÃ´â—ŠG Ã¨Ã Ã¦j â€¦Ã²dG Ï€YÃ‰Ã˜Ã dG
                                  Ï€YÃ‰Ã˜Ã dG Â¿Ã‰E a Ã‰e Ã–m cÃ´e â€˜ Ã´NBG Ï€ï¬ Ã´Â°Ã¼Ã¦Y âˆ«Ã“MGE Ã³Ã¦Y
                                         Â»FÃ‰Â«ÂªÂ«Î¼dG â€¢Ã‰Â°Ã»Ã¦dG Ã¥Â«M Ã¸e Ã´Â°UÃ‰Ã¦Â©dG Ã–Â«JÃ´J
                                          hQOÃ‰LÆ’aCG OÃ³Y â‰ˆâˆY â€¦Æ’Ã â€“ Â»Ã dG IOÃ‰Å¸G Ã¡Â«Âªc
                                                Ã‰e Ã´m Â°Ã¼Ã¦Y Ã¤GQP Ã¸e Ã³MGh âˆ«Æ’e Ã¡âˆÃ c

                                               : ÂºÂ«gÃ‰Ã˜Å¸G ÃœÃ‰Â©Â«Ã Â°SG : Ã‰Â«fÃ‰K

                  . Ï€Â«dO Ï€c â‰ˆâˆY â€™Ã‰Ã£e Ã–Ã cG ÂºK , Â»FÃ‰Â«ÂªÂ«Î¼dG Ï€YÃ‰Ã˜Ã dG Ã§hÃ³M â‰ˆâˆY Ã¡dOCG Ã¡KÃ“K Ã–Ã cG

                  . Â´Æ’f Ï€c â‰ˆâˆY GÃ³MGh â€™Ã‰Ã£e Ã´cPG - IQGÃ´Ã«âˆd OQÃ‰Â£dG Ï€YÃ‰Ã˜Ã dGh Â¢UÃ‰Å¸G Ï€YÃ‰Ã˜Ã dG ÃšH Â¿QÃ‰b

                                  . Ã¡âˆÃ£eCâ€™G Ã´cP â„¢e - âˆ‚Î¼Ã˜Ã dG Ï€YÃ‰Ã˜Jh Ã¸jÆ’Î¼Ã dG Ï€YÃ‰Ã˜J ÃšH Â¿QÃ‰b

                     . QÃ‰Â°Ã¼Ã NÃ‰H âˆ‚Ã HÃ‰LGE Ã´Â°Ã¹a ? Ã‰Â«v fÆ’HÃ´chQÃ³Â«g Ã‰k Ã‘cÃ´e ÃˆÃ Â©j Ã¡Â«dÃ‰Ã dG Ã¤Ã‰Ã‘cÃ´Å¸G â€¦CG

                  H2CO3 (Ãª        C6H12O6 (Ãœ     C3H8 ( CG
                                     C6H6 (`g  CH3OH ( O

                                  . hQOÃ‰LÆ’aCG OÃ³Yh âˆ«Æ’Å¸G ÃšH Ã¡bÃ“Â©dG âˆžÂ°U

                                  : Ã¡Â°Ã¹Â«FÃ´dG QÃ‰Î¼aâ€™C G â‰¥Â«Ã‘Â£J : Ã‰Ã£dÃ‰K

                  . Î©Æ’Â«Ã¦eÆ’dCâ€™G Ã³jQÆ’âˆc â„¢e Î©Æ’Â«Â°Ã¹Â«Ã¦ZÃ‰Å¸G Ï€YÃ‰Ã˜J ÃšÃ‘J Ã¡fhRÆ’e Ã¡Â«FÃ‰Â«ÂªÂ«c Ã¡dOÃ‰Â©e Ã–Ã cG

Ã–gÃ²dG Ã–Â°SÃ´j ÂºK , Ã–gÃ²dG Ã³Â«fÃ‰Â«Â°S Â¤GE Â¬âˆjÆ’Ã«Ã H Î©Ã‰N hCG Ã´Â°Ã¼Ã¦Y IQÆ’Â°Ã¼H Â¿Ã‰c AGÆ’Â°S Ã–gÃ²dG Â¢Ã¼âˆÃ®Ã Â°Ã¹j

     2Au (CN)2 + Zn                                 Ã¡dOÃ‰Â©Å¸G â€˜ Ã‰Âªc ÃšÂ°UQÃ‰Ã¿G Ã¡Â£Â°SGÆ’H

                                  2Au + Zn (CN)4

                                  ? (2) , (1) Ã¸e Ï€c â€˜ Ï€YÃ‰Ã˜Ã dG Â´Æ’f Ã‰e

153</code></pre>
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