
chimie
Flashcard
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Science
•
University
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Principiul lui Pauli
Back
Într-un atom, nu pot exista doi electroni cu aceleași numere cuantice. Acest principiu explică ordinea ocupării orbitalilor electronici.
2.
FLASHCARD QUESTION
Front
Regula lui Hundt
Back
Electronii se distribuie în orbitalii degenerați astfel încât să aibă numărul maxim de electroni neîmperecheați, minimizând repulsia între electroni.
3.
FLASHCARD QUESTION
Front
Aditivarea combustibilului
Back
Procesul prin care se adaugă substanțe chimice pentru a îmbunătăți proprietățile combustibilului și a proteja motorul de deteriorări.
4.
FLASHCARD QUESTION
Front
Pila galvanică
Back
Dispozitiv care transformă energia chimică a unei reacții redox în energie electrică.
5.
FLASHCARD QUESTION
Front
pH-ul unei soluții acide
Back
pH < 7; indică o concentrație mai mare de ioni de hidrogen [H+] decât 10^-7.
6.
FLASHCARD QUESTION
Front
Ion divalent pozitiv (M2+)
Back
Are cu două unități mai puțini electroni decât protoni, deci numărul electronilor este egal cu numărul protonilor minus 2.
7.
FLASHCARD QUESTION
Front
Energia orbitalilor electronici
Back
Orbitalii electronici sunt ocupați în ordinea creșterii energiei: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 4d.
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