
Test despre pH-ul soluțiilor
Authored by MARIA TRIF
Chemistry
9th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ce reprezintă pH-ul unei soluții?
pH-ul este o unitate de măsură pentru volumul unei soluții.
pH-ul reprezintă măsura acidității sau alcalinității unei soluții.
pH-ul măsoară temperatura unei soluții.
pH-ul indică densitatea unei soluții.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Care este intervalul valorilor pH-ului?
0-14
0-20
5-10
-1-13
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ce pH are o soluție neutră?
6
5
7
8
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cum se clasifică soluțiile în funcție de pH?
Soluții solide
Soluții organice
Soluții gazoase
Soluții acide, soluții neutre, soluții alcaline.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ce substanțe au un pH mai mic de 7?
Acizii, cum ar fi acidul clorhidric, acidul sulfuric și acidul acetic.
Săruri, cum ar fi clorura de sodiu
Baze, cum ar fi hidroxidul de sodiu
Soluții neutre, cum ar fi apa distilată
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ce substanțe au un pH mai mare de 7?
Baze precum NaOH, NH3, NaHCO3.
Acizi precum HCl, H2SO4, CH3COOH.
Soluții neutre precum apă distilată.
Săruri precum NaCl, KCl, CaCl2.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Cum afectează pH-ul solubilitatea sărurilor?
Sărurile sunt solubile doar la pH neutru.
pH-ul nu are niciun efect asupra solubilității sărurilor.
pH-ul afectează solubilitatea sărurilor prin interacțiuni cu ionii din soluție.
pH-ul afectează doar temperatura soluției, nu solubilitatea sărurilor.
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