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Miss54680
@Miss54680
January 2021
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Hola, j'aurai vraiment beosin d'aider pour ces exercices , surtout exercice 1 et 2 ( les autres j'essayerai moi meme ), svpp aidez moi :* Merci d'avance
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maudmarine
Verified answer
Bonjour
Exercice 1
a) C (s) + O₂ (g) -->
2
CO (g)
b) C (s) + O₂ (g) --> CO₂ (g)
c) N₂ (g) +
3
H₂ (g) -->
2
NH₃ (g)
d) C₂H₆O (l) +
3
O₂ (g) -->
2
CO₂ (g) +
3
H₂O (l)
e)
4
C₃H₇O₂N (aq) +
15
O₂ (g) -->
12
CO₂ (g) +
14
H₂O (l) +
2
N₂ (g)
f)
2
C₃H₈O₃ (l) +
7
O₂ (g) -->
6
CO₂ (g) +
8
H₂O (l)
g) C₃H₈O₃ (l) +
2
O₂ (g) -->
3
CO (g) +
4
H₂O (l)
h) C₃H₈O₃ (l) +
2
O₂ (g) -->
3
C (g) +
4
H₂O (l)
Exercice 2
(je suis pas sûre)
1)
4 Al + 3 O --> 2 Al₂ O₃
2)
Al₂ O (s) + 6 H₃ O⁺ (aq) --> 2 Al₃ (aq) + 9 H₂O
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BonjourExercice 1
a) C (s) + O₂ (g) --> 2 CO (g)
b) C (s) + O₂ (g) --> CO₂ (g)
c) N₂ (g) + 3 H₂ (g) --> 2 NH₃ (g)
d) C₂H₆O (l) + 3 O₂ (g) --> 2 CO₂ (g) + 3 H₂O (l)
e) 4 C₃H₇O₂N (aq) + 15 O₂ (g) --> 12 CO₂ (g) + 14 H₂O (l) + 2 N₂ (g)
f) 2 C₃H₈O₃ (l) + 7 O₂ (g) --> 6 CO₂ (g) + 8 H₂O (l)
g) C₃H₈O₃ (l) + 2 O₂ (g) --> 3 CO (g) + 4 H₂O (l)
h) C₃H₈O₃ (l) + 2 O₂ (g) --> 3 C (g) + 4 H₂O (l)
Exercice 2 (je suis pas sûre)
1) 4 Al + 3 O --> 2 Al₂ O₃
2) Al₂ O (s) + 6 H₃ O⁺ (aq) --> 2 Al₃ (aq) + 9 H₂O