
Repaso Octavo
Authored by Idalí Guzmán Gastón
Chemistry
8th Grade
Used 19+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si el Oxígeno se encuentra en el grupo 6A, ¿cuántos electrones de valencia tiene para compartir?
9
6
8
16
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El elemento desconocido tiene 4 protones más que Berilio y 2 electrones menos que Neón. ¿Cuál elemento es?
Carbono
Oxígeno
Nitrógeno
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La siguiente pareja de elementos se unen por medio de un enlace covalente:
Potasio - Hidrógeno
Plata - Oxígeno
Sodio -Flúor
Sodio – Cloro
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Son malos conductores de calor y electricidad. No presentan brillo metálico y se encuentran en estado sólido, líquido o gaseoso a temperatura ambiente.
metales
no metales
metaloides
gases nobles
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determina la proporción de átomos para la molécula de glucosa
6-12-6
1-1-1
2-1-2
3-2-3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La fórmula correcta para tetracloruro de carbono es _________________
CCl2
CL4C
CCi3
CCl8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uno de los factores importante par cambios de estado es ____________________.
densidad.
masa.
temperatura
volumen.
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