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ID number:194761
 
Evaluation:
Published: 12.01.2024.
Language: Latvian
Level: Elementary school
Literature: n/a
References: Not used
Time period viewed: 2021 - 2025 years
Extract

1. Aizpildi tukšās vietas! (3p)
Ogļūdeņraži , alkāni, izomērija
Ogļūdeņraži ir organiski savienojumi, kas satur tikai oglekli un ūdeņradi.
Alkāni ir piesātināto ogļūdeņražu veids.
Izomērija ir parādība, kad vielām, kurām ir vienāds sastāvs, ir atšķirīga uzbūve un īpašības.

2. Uzzīmē etāna (C2H6) struktūrformulu un saīsināto struktūrformulu! (2p)

H H H H
H-C-C-C-C-H
H H H H


3. Ieliec tabulā atbilstošos burtus! (Viens ir lieks!)(3p)
Piesātinātie ogļūdeņraži Nepiesātinātie
Ogļūdeņraži Aromātiskie
ogļūdeņraži
B A C…

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