Типы хим реакций и коэффициенты
8th Grade
•16 Qs
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Типы хим реакций и коэффициенты
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Алина Кузнецова
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16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Определите тип реакции: 2H₂ + O₂ → 2H₂O
соединение
разложение
обмен
замещение
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Каковы коэффициенты в реакции: C + O₂ → CO₂?
1, 1, 1
2, 1, 2
2, 1, 1
2, 1, 2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Напишите продукты реакции: Na + Cl₂ → ?
NaCl
Na2Cl
NaCl₂
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Определите тип реакции: CaO + H₂O → Ca(OH)₂
соединение
разложение
обмен
замещение
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Каковы коэффициенты в реакции: H₂ + N₂ → NH₃?
3, 1, 3
1, 2, 1
2, 1, 2
2, 2, 2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Напишите продукты реакции: Mg + O₂ → ?
Mg₂O₃
MgO
MgO₂
MgO₃
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Определите тип реакции: Zn + 2HCl → ZnCl₂ + H₂
Реакция соединения
Реакция замещения
Реакция разложения
Реакция обмена
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