Основания и амфотерные гидроксиды
8th - 11th Grade
•16 Qs
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Основания и амфотерные гидроксиды
Quiz
•
Chemistry
•
8th - 11th Grade
•
Practice Problem
•
Hard
Vladislav Budevich
Used 6+ times
FREE Resource
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16 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Из перечисленных гидроксидов укажите амфотерные:
Al(OH)3
Zn(OH)2
Be(OH)2
LiOH
Fe(OH)2
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Какие из гидроксидов будут изменять окраску индикаторов в растворе?
NH3
Mg(OH)2
Al(OH)3
KOH
Zn(OH)2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите окраску фенолфталеина в нейтральной среде:
Бесцветный
Малиновый
Красный
Фиолетовый
Синий
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Окраска метилоранжа и лакмуса в кислой среде...
Красная
Красная и синяя
Синяя и красная
Оранжевая и красная
Оранжевая и синяя
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Лакмус в щелочной среде имеет ... цвет. Какой?
Синий
Зеленый
Красный
Желтый
Раствор будет бесцветный
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Укажите сумму коэффициентов в сокращенном ионном уравнении:
Fe(OH)3 + 3HBr = ...
6
10
14
8
17
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Какая из представленных ниже формул соответствует гидроксиду железа(III)?
Fe2O3x3H2O
Fe2O3x2H2O
Fe2O3xH2O
2FeOx3H2O
Fe3O4x3H2O
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