Escreva a reação do ácido carbónico com a água, referente à 1º reação de ionização
teste

Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
Maria Ferreira
Used 2+ times
FREE Resource
5 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 4 pts
Evaluate responses using AI:
OFF
Answer explanation
2.
OPEN ENDED QUESTION
3 mins • 4 pts
Relativamente à reação anterior indique os pares ácido-base conjugados
Evaluate responses using AI:
OFF
Answer explanation
H2CO3/HCO3-
H3O+/H2O
3.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
O gás metano é, tal como o dióxido de carbono, responsável pela acidez da água da chuva
Verdadeiro
Falso
Answer explanation
Falso, o metano é responsável pelo aquecimento global, ao contrário do dióxido de carbono que é responsável pelos dois fenómenos
4.
FILL IN THE BLANK QUESTION
1 min • 4 pts
O calcário e o mármore são essencialmente formados por ---------------- uma substância ----------
constituída pelos iões ----- e ------.
5.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
Se o pH de uma água for pH =4,2 a concentração do ião H3O+ é?
6,3 x 10-7 mol dm-3
6,3 x 10-5 mol dm-3
1,0 x 10-7 mol dm-3
1,0 x 10-5 mol dm-3
Answer explanation
pH = -log |H3O+| e |H3O+| = 10 -pH
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