
FORMULACIÓN QUÍMICA 2DO.
Authored by WILLIAN RAMIREZ
Chemistry
1st - 5th Grade
Used 55+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál es la fórmula del monóxido de carbono?
CO
CO2
CO3
CO4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál es el número de oxidación del hierro,en el compuesto FeO?
+2
+3
+4
+5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El óxido de calcio se le conoce como cal viva y se usa como antihumedad, ¿Cuál es su fórmula?
KO
CaO
CaO2
CAO
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Que estado de oxidación tienen los elementos del grupo 1 de la tabla periódica?
+1
-1
+2
-2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El (O) tiene como numero de oxidación:
+2
+1
-2
-1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Indique cuál es el estado de oxidación del hierro en el Fe2O3.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un óxido es:
la unión de dos elementos
la union del oxígeno con el hidrógeno
la unión del oxigeno con un metal
la unión del oxigeno con uno metal o un no metal
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