Реакцией соединенсия является

8в кл типы хим реакций

Quiz
•
Chemistry
•
5th Grade
•
Medium
Анна Атаманчук
Used 4+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Na2SO4 + BaCl2= 2NaCl + BaSO4
C + 2FeO=
2Fe + CO2
4P + 5O2 =
2P2O5
Ca(HCO3)2 =
CaCO3 + H2O + CO2
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Схема реакции соединения
АВ + СД= АД + СВ
АВ=А + В
АВ + С=СВ + А
А + В= АВ
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Реакцией замещения является
N2 + 3Н2 = 2NН3
P2O5 + 3Н2О = 2Н3РО4
Mg + 2HCl =MgCl2 + H2
FeCl3 + 3NaOH =Fe(OH)3 + 3NaCl
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Реакцией разложения является
CuCl2 + Zn =ZnCl2+ Сu
4HNO3 = 4NO2 + O2 + 2H2O
Fe + H2SO4 = FeSO4 + H2
3Ba(NO3)2 + 2H3PO4 = Ba3(PO4)2 +6 HNO3
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Схема реакции разложения
АВ + СД = АД + СВ
АВ= А + В
АВ + С =СВ + А
А + В= АВ
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Реакцией обмена является
Na2SO4 + BaCl2 = 2NaCl + BaSO4
C + 2FeO =
2Fe + CO2
Ca(HCO3)2 = CaCO3 + H2O + CO2
FeCl3 + 3NaOH =
Fe(OH)3 + 3NaCl
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
В каком уравнении сумма коэффициентов равна 6?
H3PO4 + 3NaOH → Na3PO4 + 3H2O
Na2SO4 + BaCl2 → BaSO4 + 2NaCl
Na2SO4 + BaCl2 → BaSO4 + 2NaCl
H2SO4 + 2NaOH → Na2SO4 + 2H2O
8.
MULTIPLE SELECT QUESTION
1 min • 1 pt
В каком уравнении коэффициенты расставлены неверно?
СuSO4 + 2KOH → Cu(OH)2 + K2SO4
HgO → 2Hg + O2
Cu + O2 → 2CuO
ZnSO4 + 2KOH → Zn(OH)2 + K2SO4
9.
MULTIPLE SELECT QUESTION
1 min • 1 pt
В каком уравнении коэффициенты расставлены верно?
2K + Br2 → 2 KBr
Mg + N2 → Mg3N2
Ag2O → 2Ag + O2
H2 + F2 → 2HF
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