
9 класс Химия
Authored by Болат Еспенбетов
Chemistry
9th Grade
Used 3+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Электронная конфигурация атома калия
1s2 2s2 2p6 3s2 3p6 3d10 4s1
1s2 2s2 2p6 3s1
2s2 2s1
1s2 2s2 2p1
1s2 2s2 2p6 3s2 3p6 4s2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В образовании металлической кристаллической решетки принимают участие
Электроны, анионы, атомы
Только катионы металлов
Только атомы металлов
Только электроны
Электроны, катионы, атом
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При окислении происходит
Отдача электронов атомом, молекулой или ионом
Присоединение электронов
Перемещение электронной пары
Образование общей электронной пары
Завершение внешнего энергетического уровня
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какой из неметаллов образуют высший оксид типа R2O5
S
C
N
Si
F?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Не является аллотропной модификацией углерода:
Карбин
Поликумулен
Графит
Карбид
Алмаз
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Реакция замещения:
CuCO3 → CuO + CO2
CuSO4 + Fe → Cu + FeSO4
2Cu + O2 → 2 CuO
Cu(OH)2 + 2HCl → CuCl2 + 2H2O
CuO + H2SO4 → CuSO4 + H2O
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Общая сумма коэффициентов в ионном полном уравнении реакции взаимодействия фосфата натрия и хлорида кальция составляет:
32
30
25
18
12
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