Acidi e Basi
8th Grade
•22 Qs
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Acidi e Basi
Quiz
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Chemistry
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8th Grade
•
Practice Problem
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Medium
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indica quale, tra le frasi seguenti, è corretta
Le soluzioni acide colorano di blu la cartina all'indicatore universale, quelle basiche la colorano di rosso
Le soluzioni acide conducono la corrente elettrica, quelle basiche no
Lo ione H+ viene chiamato ione ossidrile
Le proprietà delle soluzioni acquose a carattere acido sono dovute alla presenza di ioni H+ idratati
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Per elaborare i dati di una titolazione è sufficiente conoscere la formula dell'acido
Vero
Falso
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Per effettuare una qualsiasi titolazione si usa sempre lo stesso indicatore
Vero
Falso
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tutte le reazioni acido-base sono riconducibili a un trasferimento di protoni
Vero
Falso
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indica fra le affermazioni che seguono l'unica corretta
Quando si scioglie un acido in acqua il valore del pH diminuisce
Quando si sciolgono un acido o una base in acqua il valore del prodotto ionico cambia
Il pH corrisponde al logaritmo decimale della concentrazione degli ioni H3O+
Il valore del pH di una soluzione può essere determinato solo con un piaccametro
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se [H3O+] = [OH−] si dice che una soluzione è neutra
Vero
Falso
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Il pH di una soluzione non varia se questa viene diluita
Vero
Falso
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