Равенство двух отношений является пропорция?
Пропорции в химии
9th Grade
•10 Qs
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Пропорции в химии
Quiz
•
Chemistry
•
9th Grade
•
Hard
Ольга Балашова
Used 4+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Да
Нет
2.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Формула известняка
CaO
Ca(OH)2
CaCO3
CaSO4
3.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Произведение крайних членов равно произведению средних членов?
Да
Нет
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Вид полезных ископаемых природное минеральное образование, содержащее соединения полезных компонентов
минералы
руда
сплавы
смеси
5.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Члены пропорции можно менять местами
Да
Нет
6.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Обжиг известняка проходит по следующему уравнению химической реакции
CaCO3+ 2HCl= CaCl2+H2O+CO2
CaSO4=CaO+SO3
CaCO3=CaO+CO2
CaO+CO2=CaCO3
7.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Можно ли приравнять отношение к обратному его значению?
Да
Нет
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