Saggi alla fiamma e Tavola Periodica
Quiz
•
Chemistry
•
2nd Grade
•
Hard
vito marchitelli
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Che colore produce il sodio alla fiamma?
Giallo
Viola
Rosso
Verde
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Il litio produce una fiamma di colore...
Rosso carminio
Verde
Azzurro
Giallo
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perché i metalli producono luce colorata quando vengono scaldati?
Bruciano completamente
Si rompono gli atomi
Gli elettroni si eccitano e rilasciano energia
Cambiano stato fisico
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cosa succede agli elettroni durante il saggio alla fiamma?
Si fondono
Saltano a livelli più alti e poi tornano indietro
Vanno via
Si trasformano
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perché si usa il filo di nichel-cromo nei saggi alla fiamma?
Resiste al calore e non altera il colore
Costa poco
Cambia colore in base al metallo
È magnetico
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quale metallo produce una fiamma verde/azzurra?
Rame
Potassio
Sodio
Calcio
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ogni metallo emette un colore diverso perché...
Ha un punto di fusione diverso
È più pesante
Ha una configurazione elettronica unica
Ha un colore naturale
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