Apa naturala - victorina
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Easy
Daiana Rosca
Used 3+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este formula chimica a apei ?
NO2
CO2
H2O
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa moale conține:
Nisip
Pietre
Ca²+Mg²
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tipul legăturii chimice în molecula de apa este :
Ionica
Metalica
Covalenta polara
Covalenta nepolara
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa dura conține:
Oxigen dizolvat
Diamante
Ioni de calciu și magneziu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă am aduna toata apa de pe pământ într-o "picătură " diametrul ei ar fi de:
1500 km
2000 km
1650 km
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este o metoda de obtinere a apei?
Distilarea
Dizolvarea
Topirea
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cea mai importanta sursa de apa din Republica Moldova este :
Râul Prut
Râul Nistru
Apa din ghețari
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