
QUÍMICA SEMANA 5
Authored by Pablo Atoche
Chemistry
3rd Grade
Used 9+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
a) 1,0
b) 1,8
c) 2,3
d) 2,8
e) 5,0
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
a) 0,25
b) 1,0
c) 2,0
d) 4,0
e) 0,5
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
11. ¿Qué factor no influye en la velocidad de reacción?
a) La presencia de un catalizador.
b) Las concentraciones de los reactivos.
c) La temperatura.
d) La naturaleza de los reactantes.
e) La densidad de los reactantes.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
4. Los tres factores más importantes en el aumento de la velocidad de las reacciones químicas son:
a) Temperatura, viscosidad, densidad.
b) Presión, volumen, catalizador.
c) Tensión superficial, presión, catalizador.
d) Temperatura, densidad, concentración.
e)Concentración, temperatura, catalizador.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
a) V=K[A][B]
b) V=K[C][D]
c) V=K[A]2 [B]
d) V=K[C][D]2
e) K [C][D]3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
6. En cierto átomo se cumple que la relación del número de protones es al número de neutrones como 5 es a 6. Calcule el número de partículas fundamentales si su número másico es 55.
a) 75
b) 78
c) 80
d) 82
e) 85
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
7. En un átomo se cumple que el número de masa es el doble del número de protones aumentado en 5 unidades. Determine el número másico si el número de neutrones es 32.
a) 59
b) 57
c) 56
d) 54
e) 52
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