14. (98-11-23) Quyidagi reaksiya tenglamasining chap tomonidagi koeffitsiyentlar yigindisi nechaga teng? K2Cr207 + K2S03 + H2S04 =
= Cr2(S04)3 + K2S04 + ...
A) 13 B)15 C)17
D) 18
E) 20
14. (98-11-23) Quyidagi reaksiya tenglamasining chap tomonidagi koeffitsiyentlar yigindisi nechaga teng? K2Cr207 + K2S03 + H2S04 =
= Cr2(S04)3 + K2S04 + ...
A) 13 B)15 C)17
D) 18
E) 20
Ответ: |
Сборник: Kimyo
Параграф:
51.2. OQR-lardagi koeffitsiyentlarni qo'yish
DTM тестирование онлайн | DTM test online