
Химия
Authored by Midas Touch
Chemistry
9th - 12th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В разбавленном растворе
концентрация всех веществ постоянна
вещество растворяется только при определенных условиях
концентрация вещества мала
вещество больше не растворяется при данной температуре
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При взаимодействии карбоната натрия с соляной кислотой образуется газ
хлор
водород
гелий
углекислый газ
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Основаниями называются вещества состоящие из
атомов металла и одной или нескольких гидроксильных групп
двух элементов, один из которых кислород
атомов металла и кислотного остатка
атомов водорода и кислотного остатка
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Электронная конфигурация иона Fe2+
1s2 2s2 2p6 3s2 3p6 3d5
1s2 2s2 2p6 3s2 3p6 3d5 4s2
1s2 2s2 2p6 3s2 3p6 3d0
1s2 2s2 2p6 3s2 3p6 3d6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
К основаниям относятся
Na2CO3, BaO
Ba(OH)2, SO3
RbOH, Fe(OH)2
KNO3, H2CO3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
На внешнем энергетическом уровне у элементов подгруппы углерода содержится электронов
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Группа амфотерных оксидов
Al2O3, ZnO, ВеO
ZnO, SO3, MnO2
MnO2, SO2, Al2O3
K2O, CuO, ВеO
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