
quiz chimica 2024
Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
Rosalba Spotorno
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20 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Nella determinazione della densità, come si ottiene sperimentalmente il volume dei cilindretti metallici?
(sono possibili più risposte)
cilindro
pipetta graduata
becher
beuta
buretta
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quale tecnica di separazione useresti per separare un miscuglio eterogeneo costituito da sale e sabbia?
cromatografia
centrifugazione
filtrazione
distillazione
elettroforesi
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dopo centrifugazione, il solido sull’estremità inferiore della provetta prende il nome di:
surnatante
fondale
residuo
precipitato
filtrato
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Nei saggi alla fiamma quale senso usiamo per riconoscere le diverse sostanze:
udito
olfatto
vista
gusto
tatto
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Da quale reazione otteniamo il seguente sale binario ZnCl2: con liberazione di H2 ?
Zn + H2SO4
Zn + HNO3
Zn+ H2S
Zn + HCl
Nessuna risposta è corretta.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La distillazione sfrutta:
diversa temperatura di congelamento
diversa densità
diversa temperatura di evaporazione
diversa colorazione
diversa conducibilità
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
HCl è un:
(possono esserci più risposte corrette e vanno indicate tutte)
composto binario
composto ternario
elemento chimico
acido
idrossido
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