
moles y moléculas
Authored by Tania C
Chemistry
9th Grade
Used 2+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál es la masa molecular del Al2O3?
102 u
43 u
6.02·1023 u
23 u
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál es la masa atómica del cobalto?
27 u
59 u
0 u
12 u
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Qué porcentaje de cloro hay en el LiCl?
35.5%
16.5%
83.5%
102.5%
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La unidad de masa atómica es...
una doceava parte del isótopo del Europio-12
una doceava parte del isótopo del carbono-14
una doceava parte del isótopo del carbono-12
una doceava parte del isótopo del Iterbio-14
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Para obtener la masa molecular de una molécula...
Es imposible calcular la masa molecular de una molécula
Hay que sumar el peso en newtons de cada uno de los átomos que forman la molécula
Se toma solo la masa atómica del átomo con mayor porcentaje dentro de la molécula.
Hay que sumar la masa atómica de cada uno de los átomos que forman la molécula.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál es el nombre tradicional del NH3?
Metano
Amoniaco
Ese compuesto no existe
Hidroniaco
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál es la fórmula del metano?
CH4
H2O
MnO
NH3
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