
Оксиды. Кислород.
Authored by Bohdan Zavydovskyi
Chemistry
7th - 8th Grade
Used 49+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Укажите число оксидов в ряду соединений NaOH, H2 , P2O5, FeCl2, HBr, FeSO4, HNO3, N2O
1
2
3
4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Формула оксида элемента №11
ЭО
Э2О
ЭО2
Э2О3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
К КАКОМУ КЛАССУ ВЕЩЕСТВ ОТНОСЯТ РЯД ОКСИДОВ?
CH4 , MgO , BaO
СO2 , SiO2 , N2O3
HCl , HNO2 , KOH
Al , FeO , SnO2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
какой формуле относят оксид Р (III)
P2O3
P2O5
PO4
PO3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
КАКАЯ ЗАПИСЬ ВЕРНАЯ ? ДЛЯ ФОРМУЛЫ - ОКСИД АЗОТА(IV)
NO2
N2O4
N2O3
NO
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
надо составить: оксид серы (IV)
SO3
SO2
SO
S2O6
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Сумма коэффициентов в уравнении реакции, схема которой O2 + Fe = Fe3O4, равна
6;
5;
8;
4.
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