Классификация химических реакций

Quiz
•
Chemistry
•
8th Grade - University
•
Medium

Наталья gty
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Выберите реакцию обмена
BaCl2+H2SO4=
BaSO4+2HCl
2Mg + O2 = 2MgO
Fe + H2SO4 = FeSO4 + Н2
CaCO3 + CO2 + H2O = Ca(HCO3)2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Эндотермическая реакция соединения
2Mg + O2 = 2MgO + Q
N2 + O2 = 2NO − Q
CaCO3 = CaO + CO2 − Q
NaOH + HCl = NaCl + H2O + Q
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Окислительно-восстановительная реакция
ZnO + 2НСl = 2ZnCl2 + Н2O
СаСO3 + 2НСl = CaCl2 + Н2О + СО2
Cu(OH)2 = CuO + Н2O
AgNO3 = 2Ag + 2NO2 + O2
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Среди нижеперечисленных характеристик укажите признаки химических реакций:
1) нагревание
2) выпадение осадка
3) введение катализатора
4) появление запаха
5) изменение окраски
6) повышение давления
Пример ответа: 123
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Экзотермическими реакциями являются:
Mg + O2 → MgO +614 кДж
CH₄ + 2O₂ → CO₂ + 2H₂O +891кДж
2C + 2H2 → C2H4 -55 кДж
H2 + O2 → 2H2O -484 кДж
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Реакцией соединения является
Na + HCl= NaCl + H2
S + O2 = SO2
BaCl2 + Na2SO4 = BaSO4 + NaCl
Al2O3 + 6HCl = 2AlCl3 + 3H2O
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Реакцией замещения является
Be + H2SO4 = BeSO4 + H2
S + O2 = SO2
NaOH + HCl = NaCl + Н2О
BaCl2 + Na2SO4 = BaSO4 + NaCl
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