
Química
Authored by María Fernanda Valenzuela Pera
Chemistry
3rd Grade
Used 10+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
En una reacción oxido-reducción, la especie química que cede electrones se dice que sufre una:
Reducción
Perdida de electrones
Reacción Redox
Oxidación
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El jugo gástrico, la vitamina C, la aspirina, el vinagre y el café son ejemplos de
Ácidos
Bases
Sales
ndicadores
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determina el estado de oxidación del hierro en el siguiente compuesto Fe2O3
+2
-2
+3
-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se define como al conjunto de aquellos procesos en los que se produce una alteración en la naturaleza de la sustancia.
Cambio físico
Soluto
Cambio químico
Reacción
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La respiración en los seres vivos es un ejemplo de:
Cambio físico
Cambio químico
Reactivo
Producto
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uno de los métodos para balancear ecuaciones es:
Por calculo
Por tanteo
Por conteo
por sumas
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Proceso a través del cual un elemento es capaz de ceder uno o más electrones:
Moho
Combustión
Reducción
Oxidación
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