Переходные металлы
Quiz
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
Роза Шашкенова
Used 10+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При нагревании гидроксида меди (II) образуются вода и
Cu
CuO
Cu2O
CuOH
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Степень окисления хрома в соединениях
+3, +4, +5
+2, +3, +6
+1, +2, +5
+1, +3, +7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Количество электронов на внешнем энергетическом уровне у металлов побочных подгрупп
2
3
4
5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
У какого из перечисленных элементов постоянная валентность
Cr
Fe
Zn
Mn
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В побочных подгруппах сверху вниз сверху вниз восстановительные свойства d-элементов....
Усиливаются
Усиливаются затем ослабевают
Уменьшаются
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Медь растворяется в разбавленном водном растворе кислоты
серной
соляной
азотной
угольной
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
С гидроксидом цинка реагируют оба вещества
НNO3 и CuCl2
СuС12 и О2
КОН и НNО3
О2 и КОН
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