
ESTEQUEOMETRIA
Authored by Roosevelt Aylas
Chemistry
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuántas moles de agua (H₂O) se producen al reaccionar 6 moles de oxígeno (O₂) en la siguiente reacción?
2H2+O2→2H2O
a) 6 moles
b) 8 moles
c) 12 moles
d) 4 moles
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuántos gramos de CO₂ se producen al quemar 5 moles de CH₄ según la reacción?
CH4+2O2→CO2+2H2O
a) 220 g
b) 44 g
c) 22 g
d) 440 g
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuántas moles de NH₃ se obtienen si se usan 9 moles de H₂ en la reacción?
N2+3H2→2NH3
a) 3
b) 6
c) 9
d) 12
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuántos gramos de MgO se forman al reaccionar 24 g de Mg con suficiente cantidad de O₂?
Reacción:
2Mg+O2→2MgO
a) 40 g
b) 20 g
c) 60 g
d) 80 g
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuántos gramos de hidrógeno se necesitan para producir 34 g de NH₃?
Reacción:
N2+3H2→2NH3
a) 3 g
b) 6 g
c) 9 g
d) 12 g
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
En la descomposición de NaHCO₃:
2NaHCO3→Na2CO3+H2O+CO2
¿Cuántas moles de CO₂ se producen por cada 2 moles de NaHCO₃ descompuestos?
a) 0.5
b) 1
c) 2
d) 3
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuántos gramos de calcio se necesitan para producir 2 moles de CaO?
Reacción:
2Ca+O2→2CaO
a) 80 g
b) 40 g
c) 20 g
d) 160 g
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