REACCIONES REDOX
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Hard
Pedro Guamán
Used 169+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se dice que un elemento químico se oxida, cuando
Comparte con un átomo que tenga tendencia a captarlos, aumenta si el átomo pierde electrones
Comparte con un átomo que tenga tendencia a rechazarlos, aumenta si el átomo pierde electrones
Comparte con un átomo que tenga tendencia a captarlos, aumenta si el átomo gana electrones
Ningún enunciado es correcto
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. La carga de un compuesto ya formado debe ser ________
Neutra
Alternativa
Cero
La opción 1 y 3 son correctas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Un elemento sin combinarse o solo en una ecuación se le otorga un número de oxidación igual a:
Si es no metal con carga negativa
Si es metal con carga positiva
Cero o neutro
Ninguna de las anteriores
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las reacciones de óxido-reducción, son reacciones químicas importantes que están presentes en nuestro entorno. La mayoría de ellas nos sirven para generar energía.
Falso
Verdadero
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Son reacciones que presentan como característica principal la ganancia y pérdida de electrones.
Reversibles
Endotermicas
De combustión
Redox
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Observa la imagen ¿Qué número de oxidación corresponde al magnesio?
+5
-2
+7
-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuántos electrones de desplazan?
3e-
4e-
5e-
6e-
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