Решение задач
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Алла Зимина
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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Реакция,протекающая с выделением энергии называется
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
В уравнении реакции
aCa(OH)2+bHNO3 =cCa(NO3)2+dH2O
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Количество вещества кислорода, прореагировавшего с 0,5 моль водорода по уравнению реакции:
2 H2 + O2 = 2H2O равно
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Масса воды, образующаяся при взаимодействии 0,5 моль водорода с кислородом по уравнению реакции:
2 H2 + O2 = 2H2O равна
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Уравнение химической реакции
2Al + 6HCl= 2AlCl3 + 3 H2 показывает, что
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