
ESTEQUIOMETRÍA - 5TO SEC - 3BIM
Authored by Marianela Porteros Juárez
Chemistry
7th Grade
Used 3+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
La ley de conservación de la masa establece que:
La masa puede desaparecer en una reacción química.
La masa de los reactivos siempre es menor que la de los productos.
La masa de los reactivos es igual a la de los productos.
Los compuestos siempre se forman en proporción fija.
2.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
2 : 2 : 2
1 : 1 : 2
1 : 2 : 2
2 : 1 : 1
3.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Si hay 20 panes y 8 hamburguesas. ¿Cuál es el reactivo limitante?
Los panes
Las hamburguesas
Ambos son limitantes
Ninguno
4.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
El rendimiento teórico de una reacción es 320 g de NaOH. Si en el laboratorio solo se obtuvieron 240 g, el rendimiento porcentual es:
50 %
60 %
75 %
80 %
5.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
¿Cuál es el volumen de HCl (en CN) que se forma al reaccionar 5 L de H₂ con 5 L de Cl₂?
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