
quiz 2F
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Medium
Stefano Cannioto
Used 2+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quale tra i seguenti composti è un ossido acido o anidride?
MgO
Na2O
SO3
HCl
NaOH
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Massa molecolare di KMnO4 (Permanganato di potassio)
158 u.m.a
250 Kg
169 u.m.a
100 g
200 u.m.A
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cosa afferma Lavoisier
Da grandi poteri derivano grandi responsabilità
La somma della massa dei reagenti è uguale alla somma della massa dei prodotti
Volumi uguali di gas diversi contengono lo stesso numero di particelle
Non è possibile trovare contemporaneamente posizione e volocità dell'elettrone
Gli atomi si combinano tra loro in rapporti definiti e costanti
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quale composto si ottiene addizionando acqua ad un ossido acido?
Una base
un sale
un alcol
un acido
un chetone
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Come si chiama il polo positivo di una pila?
catodo
anodo
ponte salino
circuito
lamina
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dove avviene la reazione di riduzione in una cella galvanica ?
anodo
catodo
ponte salino
led
nessuna delle precedenti
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dove si verifica la reazione nel riquadro a sinistra?
Polo positivo
Polo negativo
ponte salino
in tutte le precedenti
in nessuna delle precedenti
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