
Основания
Authored by Сергей Мизин
Chemistry
2nd - 5th Grade
Used 86+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите формулу гидроксид-иона:
OH
OH-
OH+
O2-
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Щелочи - это:
растворимые в воде оксиды
нерастворимые в воде оксиды
растворимые в воде основания
нерастворимые в воде основания
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Назовите вещество Fe(OH)2:
гидроксид железа
гидроксид железа (III)
гидроксид железа (I)
гидроксид железа (II)
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Укажите формулу гидроксида алюминия:
Al(OH)3
Al(OH)2
Al2O3
AlOH
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Выберите ряд, в котором расположены только щелочи:
Fe(OH)2, Mg(OH)2, KOH
NaOH, KOH, Ba(OH)2
Ca(OH)2, Zn(OH)2, NaOH
LiOH, Cu(OH)2, Ba(OH)2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
В присутствии щелочей фенолфталеин изменяет свою окраску на:
желтую
фиолетовую
красную
малиновую
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Какой оксид соответствует Al(OH)3?
AlO
Al2O3
Al3O2
Al2O2
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