1. Conform teoriei Brønsted-Lowry, un acid este:
🧪 Test grilă – Acizi și baze (teoria protolitică)

Quiz
•
Chemistry
•
9th Grade
•
Hard
Giorgiana Terinte
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
O substanță care cedează protoni (H⁺)
O substanță care acceptă protoni (H⁺)
O substanță care cedează electroni
O substanță care acceptă electroni
2.
MULTIPLE SELECT QUESTION
20 sec • 5 pts
Care dintre următoarele substanțe poate acționa ca o bază Brønsted-Lowry?
NH₃
HCl
OH⁻
H₂SO₄
3.
MULTIPLE SELECT QUESTION
20 sec • 5 pts
În reacția: NH₃ + H₂O ⇌ NH₄⁺ + OH⁻, care este baza Brønsted și care este acidul Brønsted?
NH₃ este baza, H₂O este acidul
NH₄⁺ este acidul conjugat, OH⁻ este baza conjugată
NH₃ este acidul, H₂O este baza
NH₄⁺ este baza conjugată, OH⁻ este acidul conjugat
4.
MULTIPLE SELECT QUESTION
20 sec • 5 pts
Apa (H₂O) este considerată o substanță amfoteră deoarece:
Poate accepta un proton
Poate ceda un proton
Este întotdeauna o bază
Se comportă diferit în funcție de substanța cu care reacționează
5.
MULTIPLE SELECT QUESTION
20 sec • 5 pts
Ce pereche acid–bază conjugată este corect identificată?
HCl / Cl⁻
H₂SO₄ / HSO₄⁻
NH₄⁺ / NH₃
OH⁻ / O²⁻
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