
Халькос
Authored by Marina Komarova
Chemistry
9th Grade
Used 8+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
в первой группе V периоде побочной подгруппе ПСЭ находится
серебро
золото
медь
рубидий
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
валентность II и степень окисления +2 характерны для
алюминия
натрия
хлора
меди
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
электронная формула атома меди
...3d9 4s2
...3d10 4s1
...3d10 4s2
...3d8 4s3
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
медь металл
известный с древних пор
красноватого цвета
диэлектрик
драгоценный
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
медь не вступает в реакцию с
с соляной кислотой
с азотной кислотой
с азотом
с хлором
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Сумма коэффициентов в уравнении Cu+H2SO4=CuSO4+SO2+H2O
5
7
4
9
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
медный купорос
серого цвета
красного цвета
бесцветные
голубого цвета
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