Хімічні властивості основ
Quiz
•
Chemistry
•
8th Grade
•
Hard
Олена Беркела
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12 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Вкажіть формулу лугу
NaOH
Fe(OH)2
Cu(OH)2
Al(OH)3
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Вкажіть реакцію нейтралізації
Cu(OH)2=CuO+H2O
Ba(OH)2+2HCl=BaCl2+2H2O
K2O+SO3=K2SO4
2NaOH+CuCl2=Cu(OH)2+2NaCl
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вкажіть колір фенолфталеїну у лужному середовищі
жовтий
безбарвний
малиновий
рожевий
4.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Вкажіть формули нерозчинних основ
Сu(OH)2
NaOH
Ca(OH)2
Fe(OH)2
5.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Вкажіть формули основ, що розкладються при нагріванні
NaOH
Cu(OH)2
Ba(OH)2
Al(OH)3
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Вкажіть продукти реакції (з правильними коефіцієнтами) Fe(OH)2+H2SO4=
FeSO4+2H2O
FeSO4+H2O
FeSO3+2H2O
FeSO3+H2O
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Вкажіть реакцію, що НЕ відбувається
Сu(OH)2=CuO+H2O
2Al(OH)3=Al2O3+3H2O
Cr(OH)2=CrО+H2O
2KOH=K2O+H2O
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