Контрольна робота екстернат

Quiz
•
Chemistry
•
9th Grade
•
Hard
Оксана Комиза
Used 2+ times
FREE Resource
33 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вкажіть назву речовин, до складу яких входить кристалізаційна вода:
гідрофоби
кристалогідрати
гідрофіли
гідрати
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вкажіть відносну молекулярну масу залізного купоросу FeSO4⋅7H2O
152
278
214
126
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Al2(SO4)3 = 2Al3+ + 3SO42-
Ba(OH)2 = Ba+ + 2OH-
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CaSO4⋅5H2O
CaSO4⋅2H2O
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ba(NO3)2 + H2SO4 →
Ba(NO3)2 + CaCl2 →
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
BaCl2 + H2SO4 → 2HCl + BaSO4↓
Zn + 2HCl = ZnCl2 + H2↑
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mn+7 + 5е = Mn+2
2Cl- - 2е = Cl20
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