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ID number:495037
 
Author:
Evaluation:
Published: 27.01.2021.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

5. uzdevums (5 punkti) Uzraksti ķīmiskās reakcijas vienādojumus ogļūdeņražu reakcijām:
a) etēns reaģē ar ūdeni: C2H4 + H2O → C2H5OH
b) propāns reaģē ar bromu C3H8 + Br2 → C3H8Br2
c) no etīna iegūst etēnu: C2H2 + H2 → C2H4
d) no propēna iegūst 1,2-dihlorpropānu: C3H6 + Cl2 → C3H6Cl2
f ) sadedzinot etēnu, rodas oglekļa(IV) oksīds un ūdens: 2C2H2 + 5O2 → 4CO2 + 2H2O
6.uzdevums (2 punkti) Hloru saturošie organiskie savienojumi ir labi šķīdinātāji. Uzraksti ķīmisko reakciju vienādojumus 1,2-dihloretāna un 1,2-dihloretēna iegūšanai!
CH=CH-CH3 + Cl3 → CH2Cl-CH2Cl
CH=CH + Cl-Cl → CHCl=CHCl

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