seleeccion 1 Reacciones quimicas

Quiz
•
Chemistry
•
1st Grade
•
Medium
JORGE BARRERA
Used 2+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
La sustancia que se oxida, se denomina agente
reductor
oxidante
neutro
2.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
la sustancia que gana electrones se denomina...
Agente oxidante
Agente reductor
3.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Hallar el estado de oxidacion del carbono, en el compuesto: Na2CO3
+2
+4
-2
-4
4.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
la fermentacion de la chicha de jora es un fenomeno...
fisico
quimico
5.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
no es evidencia de la ocurrencia de una reaccion quimica
liberacion de gases
formacion de precipitados
sublimacion
cambio de color
6.
MULTIPLE CHOICE QUESTION
3 mins • 4 pts
balancear la combustion completa del pentano, C5H12, e indicar la suma de todos sus coeficientes
20
19
17
21
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
indique un fenomeno fisico
combustion de la madera
destilacion del petroleo
corrosion del acero
neutralizacion del acido clorhidrico
8.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
indique el tipo de ecuación quimica
Cu + HNO3 --> Cu(NO3)2 + H2
desplazamiento simple
desplazamiento doble
sintesis
descomposicion
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