ULEAM - PRUEBA 4
Authored by Daniel Rodríguez
Chemistry
University
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indicar el estado de oxidación del AZUFRE en
+2
+4
+6
-2
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Indicar que compuestos son son hidroxidos:
KOH
NaH
Mg(OH)
Ba2O2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Los siguientes estados de oxidación (-1, +1, +3, +5,+7) pertenecen al:
Bario
Nitrogeno
Boro
Iodo
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Qué fórmula tiene nombre incorrecto?
MnO : Óxido manganoso
F2O : Anhídrido flúrico
PbO : Óxido plúmbico
SO3 : Anhídrido sulfúrico
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué ecuación química corresponde a un óxido ácido?
2Mn + O2 --- 2MnO
2Cr + 3O2 --- 2CrO3
4Mn + 3O2 --- 2Mn2O3
2Cr + O2 --- 2CrO
6.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
La fórmula del Fosfato de Magnesio es:
Ninguno
7.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Ácido Arsénico
Ácido meta arsénico
Ácido piro arsénico
Ácido orto arsénico
Ninguno
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