
Examen Unidad 3 - Baterías
Authored by Gustavo Tamburini
Science, Other, Chemistry
6th Grade
Used 2+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
¿Cuál es el principio fundamental de las baterías?
Reacciones químicas
Transferencia de energía térmica
Generación de luz
Conducción eléctrica
2.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Durante las reacciones REDOX en una batería, ¿qué ocurre en el cátodo?
Ganancia de electrones
Pérdida de electrones
Transformación de energía térmica
Descomposición química total
3.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
¿Cómo se llaman el polo positivo de las celdas electroquímicas?
Cátodo
Ánodo
4.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
¿Cuál es la característica principal de las baterías primarias?
Son recargables
Se utilizan en vehículos
Se desechan después de agotarse
Contienen materiales alcalinos
5.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
¿Qué sucede cuando una batería de plomo-ácido está descargada?
Se forma sulfato de plomo
Se reduce el dióxido de plomo
Se oxida el plomo
Se transforma en plomo metálico
6.
MULTIPLE CHOICE QUESTION
20 sec • 3 pts
Dos baterías de doce voltios conectadas en serie, la tensión final es de
32
24
12
6
7.
MULTIPLE SELECT QUESTION
30 sec • 3 pts
¿El Litio es un material inestable de manera natural?
Si
No
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