
Соединения серы
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Marina Komarova
Used 7+ times
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13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
к элементам подгруппы серы относятся
O, S, Se, Cr, Mo, Te
S, Se, Te, W,Po
S, O, Te, Se, Po
S, Se, Mo, Te, W
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Высшая валентность элементов подгруппы серы равна
VI
IV
II
VIII
3.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Серная кислота
одноосновная
двухосновная
сильная
растворима в воде
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Масса семи молекул серной кислоты равна
666
686
688
868
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Формула сульфата алюминия
AlSO4
Al2SO4
Al(SO4)3
Al2(SO4)3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Во сколько раз масса сульфата алюминия больше массы серной кислоты?
3,5
3,48
3,49
3,4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Массовая доля алюминия в сульфате алюминия составляет
0,15
0,16
0,1
0,2
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