7- sinf. Chsb-4 test probirkaga oz miqdorda CaO solib, ustiga oz miqdorda suv quying. Hosil bo’lgan eritmaga fenolftalein indikatoridan tomizing
7-sinfCHSB-4 4-chorak
- Bu sahifa navigatsiya:
- B) kamayadi, o’zgarmaydi; C) kamayadi, ortadi; D) ortadi,ortadi; 3. Ularning o’simlikdagi ulushi quruq massaning 80%iga,hayvon organizmida
- D) uglevodlar; 4. Organizmda I,Ca,P,Mg,S,Se,Si larning yetishmasligi qanday o’zgarishga olib keladi . (bililsh 2ball) A) kamqonlik;
- A) 140gr B) 120gr C) 180gr D) 160gr 7.Neytrallanish reaksiyasini aniqlang (qo’llash 2,7ball)
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