Sec 4 pH, acide, base et sel !!!
Quiz
•
Chemistry, Science
•
11th - 12th Grade
•
Hard
Stéphane Masse
Used 49+ times
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Parmi les substances suivantes, laquelle pourrait avoir un pH de 5
CH3OH
HBr
NaCl
NH4OH
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Parmi les choix suivants, lequel possède un produit de la neutralisation acidobasique?
H2O2
CaCl2
HCl
NaOH
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On désire neutraliser du Ca(OH)2. Quelle substance pourrait être utilisée?
CaF2
C2H5OH
C5H7O4COOH
H2O
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel énoncé est vrai?
Une solution de pH=2 et 2 fois plus acide qu'une solution de pH=4
Une solution de pH=2 et 100 fois plus alcaline qu'une solution de pH=4
Une solution de pH=2 et 100 fois plus acide qu'une solution de pH=4
Une solution de pH=2 et 2 fois plus alcaline qu'une solution de pH=4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vous mettez une goutte de cet indicateur dans une solution fortement acide. Quelle couleur prendra l'indicateur ?
Jaune
Vert
Bleu
Violet
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle substance pourrait rougir le papier tournesol?
NaOH
NaCl
CO2
H2CO3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quel choix pourrait contenir des réactifs d'une réaction acidobasique?
LiF et H2O
CH3OH et HI
H2O et NH4OH
H3PO4 et Sr(OH)2
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