
Хімічні реакції
Authored by Polinka Kolomoets
Chemistry, Science
1st - 10th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
К типам реакций по составу исходных веществ и продуктов реакций не относятся реакция
соединения
замещения
обогащения
обмена
Answer explanation
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Какой фактор не влияет на скорость химической реакции
добавление катализатора
изменение формы резервуара с растворами веществ
уменьшение температуры в системе
увеличение концентрации реагирующих веществ
Answer explanation
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Состояние химической системы при равенстве скоростей прямой и обратной реакций
равновесие
независимость
коммунизм
вселенское счастье
Answer explanation
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Реакция, имеющая общий вид типа: АВ = А + В относится к реакциям
соединения
разложения
замещения
Answer explanation
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Реакция Разложения
2H2O=2H2+O2
CuSO4+Fe=FeSO4+Cu
CaO+H2O=Ca(OH)2
Na2CO3+HCl=H2O+CO2+NaCl
Answer explanation
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Реакция соединения
SO2 + H2O = H2SO3
2KNO3 = 2KNO2 + O2
2Na + 2H2O = 2NaOH + H2
2NH4Cl + Ca(OH)2 = CaCl2 + 2NH3 + 2H2O
Answer explanation
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Составьте уравнение реакции:
Ответ дайте в виде суммы коэффициентов в уравнении реакции
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