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ID number:292393
 
Author:
Evaluation:
Published: 27.01.2021.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

4. Mēģenē ielej 1 ml vara(II) sulfāta šķīduma un klāt pielej 1 ml nātrija hidroksīda šķīdumu. Veidojas nogulsnes, kurām pievieno 0,5 ml glicerīna un ar stikla nūjiņu samaisa. Novēro izmaiņas.
To pašu atkārto ar etilēnglikolu.

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