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30
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3
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OH = Cr
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COH + 3 H
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30 GZibkZlvmjZ\g_gby\k_oj_Zdpbc HIUL 2.Ihemq_gb_bk\hckl\Zkh_^bg_gbcojhfZ Z Ihemq_gb_hdkb^ZojhfZ bbamq_gb__]hhdbkebl_evguok\hckl\ GZeblv\klZdZg fegZkus_ggh]hjZkl\hjZK2Cr2O7 bijbeb\ZlvihdZieyf dhgp_gljbjh\Zggmxk_jgmxdbkehlmhoeZ`^ZyklZdZg\oheh^ghc\h^_jm]mxqZklvdjbklZeeh\jZkl\hjblv\–fe\h^ub^h[Z\blvjZkl\hjbh ^b^ZdZebyGZ[ex^Zlvbaf_g_gb_p\_lZjZkl\hjZH[gZjm`blvijbkmlkl\b_bh^Z\ jZkl\hj_ [ Hdbkebl_evgu_k\hckl\Z^bojhfZlZdZeby <^\_ijh[bjdbijbeblvihfejZkl\hjZK2Cr2O7 <i_j\mx^h[Z\blv feFk_jghcdbkehlub–dZi_evkmevnb^ZgZljby
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