
Otopine
Quiz
•
Science
•
10th Grade
•
Easy
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što je otapalo?
Tvar koja može otopiti drugu tvar.
Tvar koja se otapa.
Miješanje različitih tvari.
Nastajanje nove tvari.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kako se naziva tvar otopljena u drugoj tvari?
Otopina
Otopljena tvar
Otapalo
Spoj
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Od čega se sastoji otopina?
emulzije otapala
otapala i otopljene tvari
suspenzije i taloga
Filtrata i taloga
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što od navedenog nije otapalo?
Alkohol
Aceton
Voda
Grafit
Answer explanation
Osim vode otapala mogu biti i tvari poput alkohola, acetona i slično. Grafit je čvrsta tvar, sivo crne boje. Od grafita se izrađuju obične grafitne olovke.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Od ponuđenog, mekim vodama pripada?
Morska voda
Destilirana voda
Vodovodna voda
Answer explanation
Prirodne vode dijelimo na meke i tvrde ovisno o količini otopljenih tvari. Meke sadrže malu količinu magnezijevih i kalcijevih soli, dok tvrde sadrže veće količine.
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Otapalo je najčešće u ________ agregacijskom stanju
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što su vodene otopine?
Otopine u kojima je topljiva tvar voda.
Otopine u kojima je otapalo voda.
Otopine.
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