ION ELECTRÓN
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Hard
CALIXTA MAMANI COPAJA
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En el balance por el método del ion electrón en un medio ácido. ¿se utiliza al ion?
OH-
H+
H2O
O-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la siguiente semirreacción en medio ácido: Cr2O7 -2 → Cr+3. ¿Cuántos iones hidrógeno y agua se necesitan para su balance?
7 H2O y 7 H+
14 H2O y 7 H+
7 H2O y 14 H+
7 H2O y 14 OH-
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la siguiente semirreacción en medio básico: MnO41- → Mn2+. ¿Cuántos moléculas de agua y iones OH1- se necesitan para su balance?
4 H2O y 7 OH-
8 H2O y 4 OH-
4 H2O y 8 OH-
7 H2O y 14 OH-
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la reacción siguiente
Balancear por el método ION ELECTRÓN. Determine Coeficiente estequiometrico del Agua
9
8
7
6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ajusta, haciendo uso del método de ion-electron la siguiente reacción
El Estado de oxidacion del nitrogeno pasa de
+5 a +2
+1 a +2
+3 a +5
+2 a +5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la siguiente reacción el estado de oxidación del Mn pasa de
+6 a +2
+5 a +2
+2 a +4
+4 a +2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un electrón tiene carga
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