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ID number:877761
 
Evaluation:
Published: 17.11.2007.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Etilspirta šķīdums kļuva tumši brūns(līdzīgs attēlā redzamajam), vēlāk iegūstot tumši zaļu nokrāsu, tātad tajā bija daudz OH grupu, jo reakcijā ar šo grupu rodas Cr2O3, kura dabiskā krasa ir zaļgana.
Enerģijas dzērieni ieguva vienādu toni, kas bija daudz gaišāks, nekā etilspirta šķīduma tonis. …

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