Химические свойства оксидов
Authored by Сергей Мизин
Chemistry
8th Grade
Used 3+ times
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6 questions
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1.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
С какими из веществ будет реагировать MgO:
HNO3
CO2
NaOH
CaO
2.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
С какими из веществ будет реагировать СО2 :
NaOH
SO3
HCl
MgO
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Сумма коэффициентов в уравнении реакции
CaO + HCl = CaCl2 + H2O
равна:
(a)
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Сумма коэффициентов в уравнении реакции
SO2 + NaOH = Na2SO3 +H2O
равна:
(a)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Сокращенное ионное уравнение реакции
СaO + 2HCl = CaCl2 +H2O
Ca2+ +2Cl- = CaCl2
CaO + 2H+ = Ca2+ +H2O
CaO +2Cl- = CaCl2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cокращенное ионное уравнение реакции
SO3 + 2NaOH = Na2SO4 +H2O
SO3 +2Na+ = Na2SO4
SO3 +H2O = H2SO4
SO3 +2OH- =
SO4 2- +H2O
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