
Control cálculos estequiométricos 2°M
Authored by QUI Loyola
Chemistry
9th - 10th Grade
Used 17+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Si se hacen reaccionar 2,5 moles de (Ca(PO4)2), cuántos moles de (CaSiO3) se producirán. (Ecuación equilibrada)
7,5
0,83
4,8
1
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Considerando la reacción de formación del amoniaco:
Para preparar 17 g de amoniaco, ¿Cuántos g de N2 son necesarios?
DATOS: Masas Atómicas: H = 1g/mol, N = 14 g/mol.
28
14
6
4,5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La ley de conservación de la masa implica que:
Los reactivos siempre están ajustados
Los productos siempre están a la derecha de la reacción
Las reacciones de síntesis son endotérmicas
La masa de reactivos y productos es la misma
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las unidades correctas de la masa molar son:
g
mol
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Con base en la ecuación, el numero de moles de O2 que se forma con 30 moles de agua es
5 mol
30 mol
1 mol
180 mol
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Si se tiene 50 gramos de CO2, ¿Cuántos moles de glucosa se generan?
DATOS: Masa molar de CO2 = 44 g/mol
18,9 mol
6,818 mol
366,6 mol
0,189 mol
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Para la siguiente reacción:
N2 + 3H2→ 2NH3
Si se obtienen 6,8 g de amoniaco NH 3, es porque de nitrógeno reaccionaron
DATOS: Masas molares N= 14 g/mol, H= 1 g/mol
11,2 g
4 g
6,8 g
5,6 g
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