La chimica generale - esercitazione per verifica
Quiz
•
Science
•
7th Grade
•
Practice Problem
•
Easy
MARTINA GROSSO
Used 1+ times
FREE Resource
52 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
UN ATOMO CHE PERDE UN ELETTRONE:
Si chiama ione negativo
Si chiama ione positivo
Si chiama gas nobile
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
UN ATOMO CHE ACQUISTA UN ELETTRONE:
Si chiama ione negativo
Si chiama ione positivo
Si chiama atomo neutro.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
UN ATOMO CHE HA LO STESSO NUMERO DI ELETTRONI E PROTONI:
Si chiama ione negativo
Si chiama ione positivo
Si chiama atomo neutro.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
IL NUMERO ATOMICO DEL PIOMBO è 82 QUINDI:
Un atomo di piombo pesa 82 mg.
Un atomo di piombo ha 82 protoni.
Un grammo di piombo contiene 82 atomi.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
IN CHE PERIODO è VISSUTO LAVOISIER?
Rivoluzione industriale.
Rivoluzione americana.
Rivoluzione francese.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
COME SI RAPPRESENTANO LE REAZIONI CHIMICHE?
Con immagini.
Con dei grafici.
Con delle espressioni matematiche collegate da una freccia.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
LE REAZIONI CHIMICHE CHE LIBERANO ENERGIA ALL’ESTERNO SOTTOFORMA DI CALORE SI CHIAMANO:
Reazioni endotermiche
Reazioni esotermiche
Reazioni reversibili
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