Cristalohidrati
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Hard
Maria Pacurar
Used 13+ times
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5 questions
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1.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Cristalohidrații sunt substanțe lichide cu compoziție bine definită, capabile să fixeze un anumit nr de molecule de apă.
Adevărat
Fals
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CuSO4•5H2O
Uzual, este denumit piatră albastră.
Denumirea completă este sulfat de cupru hidratat.
Se utilizează în medicină
Este utilizat ca și agent de curățare.
3.
FILL IN THE BLANK QUESTION
20 sec • 1 pt
Substanțele obținute în urma deshidratării se numesc:
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sunt corecte următoarele afirmații despre sarea amară:
Are următoarea formulă: MgSO4•7H2O
Are urmatoarea formulă: MgSO4•5H2O
Se utilizează la purificarea apei
Se utilizează în domeniul alimentar
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Substanțele care pierd o parte din apa de cristalizare (fără intervenție) se numesc:
Anhidre
Higroscopice
Eflorescente
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