
Вопросы по химии
Quiz
•
Mathematics
•
1st - 5th Grade
•
Easy
Dilnaz Muratbekova
Used 3+ times
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136 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Формула расчета значения pH щелочных растворов
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Формула расчета значения pH слабых оснований
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Уравнение Гендерсон-Гассельбаха для основных буферных систем
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Формула расчета значения pH соли, состоящей из сильной кислоты и слабого основания
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
pH раствора КОН концентрацией 0,001 моль/л
10^-2
10^-12
12
11
13
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Частичная реакция, при которой концентрация ионов водорода оказывает максимальное влияние на величину окислительно-восстановительного потенциала.
Cr2+ + 2e ↔ Cr0
Cr3+ + 3e ↔ Cr0
Cr3+ + e ↔ Cr2+
CrO42- + 3e + 4H2O ↔ Cr(OH)3 + 5OH-
Cr2O72- + 6e + 14H+ ↔ 2Cr3+ + 7H2O
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Формула, определяющая направление окислительно-восстановительной реакции
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