Фосфор и его соединения
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
Marins Dzyubina
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Каково распределение электронов по энергетическим уровням в атоме фосфора?
2, 6, 5
2, 8, 3
2, 8, 5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Сколько валентных электронов имеет атом фосфора?
3
4
5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой степени окисления у фосфора быть не может?
-1
+3
+5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой оксид фосфора соответствует ортофосфорной кислоте?
P2O3
P2O5
P2O6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как корректно назвать соль CaHPO4?
гидрофосфат кальция
фосфат кальция
гидрофосфат калия
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
С каким катионом фосфат-анион дает качественную реакцию?
Ag+
Hg2+
Sn4+
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Порядковый номер фосфора
31
17
15
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