7 класс-2
Quiz
•
Chemistry
•
10th Grade
•
Medium
Татьяна Колевич
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите валентность серы в SO2
I
II
III
IV
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите массовую долю серы в SO2
10 %
30 %
50 %
55 %
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите валентность азота в NH3
I
II
III
IV
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В 100 г чая содержится 5 г сахара. Какова массовая доля сахара в чае?
5 %
10 %
50 %
95 %
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В стакан налито 200 г сладкого чая, в котором массовая доля сахара равна 5 %. Чему равна масса сахара в чае?
5 г
10 г
15 г
20 г
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