
МОДО 1 вариант
Quiz
•
Chemistry
•
1st Grade
•
Medium
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Природное соединение алюминия, которое применяют как абразивный материал:
глинозем
боксит
каолин
корунд
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
С оксидом алюминия реагируют оба вещества:
Cu(OH)2 И HCI
KOH и H2SO4
H2O и NaOH
Ba(OH)2 и Fe(OH)2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Оксид алюминия образует сульфат алюминия при взаимодействии с:
раствором сернистой кислоты
сероводородом
раствором серной кислоты
серой
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В Британском музее в Лондоне хранится самый большой в мире кристалл рубина массой 33,4г – «Рубин Эдуард». Массой хрома (г), которой содерижится в рубине Эдуарда, равна
0,457
0,134
1,336
0,914
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Формула натриевой селитры:
Na2SO4
NaNO3
NaNO2
NaHSO4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В уравнении реакции, схема которой Cu + HNO3 = Cu(NO3) + NO2 + H2O. коэффициент перед веществом - окислителем равен:
2
8
1
4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Азотное удобрение:
мочевина
поташ
двойной суперфосфат
преципитат
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