Химические реакции. Растворы

Quiz
•
Chemistry
•
10th Grade
•
Hard
Татьяна Колевич
Used 14+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите реакцию замещения
P2O5+ 3H2O = 2H3PO4
H2O2 = H2O + O2↑
Mg + 2HCl = MgCl2 + H2↑
3Ca(NO3)2 + 2Na3PO4 = Ca3(PO4)2↓ + 6NaNO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какая из химических реакций, уравнения которых приведены ниже, является окислительно-восстановительной?
CuCl2 + 2KOH = Cu(OH)2↓ + 2KCl
Cu + 2H2SO4 = CuSO4 + SO2↑ + 2H2O
Ca + CO2 = CaCO3
Na2SO3 + 2HCl = 2NaCl + SO2↑ + H2O
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какая из химических реакций, уравнения которых приведены ниже, является обратимой?
CH4 + 2O2 = CO2 + 2H2O
Zn + CuSO4 = ZnSO4 + Cu↓
AgNO3 + NaCl = AgCl↓ + NaNO3
3H2 + N2 = 2NH3
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Какая из химических реакций, уравнения которых приведены ниже, является эндотермической?
CH4 + 2O2 = CO2 + 2H2O
Ca + H2O = Ca(OH)2
HNO3 + NaOH = NaNO3 + H2O
N2 + O2 = 2NO
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Определите сумму коэффициентов в уравнении окислительно-восстановительной реакции, схема которой следующая:
Сu + HNO3(конц.) → Cu(NO3)2 + NO2 + H2O
10
9
8
6
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Практически нерастворимым в воде веществом является
хлорид магния
сульфат бария
бромид натрия
нитрат серебра
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Для какого из веществ НЕ может быть получен насыщенный раствор
аммиак
хлорид натрия
серная кислота
сульфат кальция
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