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Соединения серы и азота
Quiz
•
Chemistry
•
9th Grade
•
Medium
Arina Makarova
Used 2+ times
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1771
1872
1881
1772
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Является ли реакция H2S + Pb(NO3)2 = PbS + 2HNO3 качественной?
Да
Нет
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Раствор какой концентрации аммиака называют нашатырным спиртом?
15%
20%
5%
10%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В какой цвет аммиак окрашивает лакмусовую бумажку?
красный
фиолетовый
синий
зеленый
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какую химическую формулу имеет пирит?
ZnS
FeS2
CuS
Cu2S
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Является ли реакция Na2CO3 + HNO3= 2NaNO3 + H20 + CO2 качественной?
да
нет
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое вещество имеет название гидразин
N2H4
NH4
NH2OH
N2O3
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