
TEMÁTICO DE CIENCIAS
Authored by Christian Borja
Science
1st - 4th Grade
Used 2+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
1. Halle el número de electrones de valencia del elemento cloro, que se ubica en el tercer periodo y tiene la siguiente notación de Lewis:
3
5
7
1
8
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2. Se trata de una sustancia iónica:
KCI
CO
H2O2
NH3
HNO3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3. Relacione convenientemente:
I. CO2 ( ) Enlace iónico
II. NaF ( ) Enlace metálico
III. Au ( ) Enlace covalente
I, II, III
III, II, I
II, III, I
II, I, III
I, III, II
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4. Si reaccionan dos elementos como 11A y 9B, el compuesto generado tendrá la formula química.
AB
AB2
A2B
A3B2
A2B3
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
1. Realice el D.C.L. de la esfera homogénea e indique el numero de fuerzas que actúan sobre ella (superficies lisas)
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
2. Uno de los deportes en las olimpiadas es la gimnasia artística, se muestra un competidor de 70 kg en la posición indicada, determine el módulo de la tensión en cada cuerda si estas se encuentran de forma vertical. Considere que las cuerda son iguales (g=10 m/s2)
100 N
150 N
200 N
350 N
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
3. Se muestra el DCL de una esfera en equilibrio. Determine el módulo F de la fuerza que se muestra. (g=10 m/s2)
10 N
50 N
60 N
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