
9 СЕРА
Quiz
•
Chemistry
•
5th Grade
•
Practice Problem
•
Medium
Анна Атаманчук
Used 10+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Для серы характерна степень окисления:
1. -3 2. -6 3. -4 4. +4
1
2
3
4
2.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Сера – более сильный окислитель, чем
1. Фтор 2. Хлор 3. Фосфор 4. Кислород
1
2
3
4
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Степени окисления серы изменяются в последовательности +6, -2, 0 в группе веществ
1. S, SO2, SO3
2. H2SO4, SO2, H2S
3. Na2SO4, K2S, S
4. SO3, K2SO3, S
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Схема превращения S+6 → S+4 соответствует уравнению реакции
SO3 + H2O → H2SO4
H2SO4 + Zn → ZnSO4 + H2
Cu + 2H2SO4 → CuSO4 + SO2 + 2H2O
2SO2 + O2 → 2SO3
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
СЕРА может взаимодействовать со всеми веществами группы
MgO, CO2, Na
Na, Zn, Cu,
Cu, Fe, Mg(OH)2,
Ba, Fe, H2О
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
И сернистый газ, и оксид серы (VI) будут реагировать со следующей парой веществ
Н2О и СО2
H2O и Cl2
NaOH и CaO
H2S и О2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Для осуществления превращения H2S→SO2→SO3→ K2SO4 нужно последовательно использовать
Воду, кислород, оксид калия
Кислород, воду, калий
Кислород, кислород, гидроксид калия
Воду, кислород, карбонат калия
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