ESTEQUIOMETRÍA
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Elena Tapia
Used 7+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
En una reacción química, el reactivo limitante es:
Aquel que se consume más rápido en la reacción
Aquel que sobra durante la reacción
Ambas respuestas son correctas
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Para hallar el número de moles de un compuesto, este se da cuando hay relación entre:
Peso molecular/ Peso en gramos
Peso en gramos/Peso molecular
Ambas opciones son incorrectas
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Se tienen 7 gramos de MnO2 y 10 gramos de HCl. Determinar el reactivo limitante y el reactivo en exceso.
R.L= MnO2 R.E.= HCl
R.E= MnO2 R.L.= HCl
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Hay 25 gramos de Carbonato de Calcio (CaCO3) y 17 gramos de ácido clorhídrico (HCl). Hallar la masa del CO2
m= 20,24 gramos
m= 44 gramos
m= 10,4 gramos
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
El azida de sodio (NaN3) se descompone en nitrógeno molecular N2 y sodio a altas temperaturas. Si reacciona una pastilla de 85 gramos de NaN3. Calcular los gramos del sodio y del nitrógeno obtenido
Nitrógeno: 54,9 gramos
Sodio: 45 gramos
Nitrógeno: 27 gramos
Sodio: 30 gramos
Nitrógeno: 54,9 gramos
Sodio: 30 gramos
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