Evaluación Segundo Trimestre
Quiz
•
Chemistry
•
2nd Grade
•
Hard
Luis Erick Saucedo Calzada
Used 7+ times
FREE Resource
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27 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El número atómico indica el numero de protones que hay dentro de un núcleo. ¿Cuántos protones hay en el núcleo atómico del Oxigeno (O)?
8
6
2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El número de electrones de un átomo, es igual al numero de protones ¿Cuántos electrones hay en el átomo del Cadmio (Cd)?
12
5
48
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Selecciona aquel elemento (bioelementos) que forman parte de la materia viva
Mercurio
Carbono
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Es una molécula:
H20 (Agua)
Neón
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una ecuación química los coeficientes (los números grandes que están al inicio de la molécula) representan...
El numero de moles
El número de Avogadro
El numero de gramos
El numero de partículas
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un mol es una unidad de medida del Sistema Internacional para medir:
la cantidad de longitud
la cantidad de peso
la cantidad de masa
la cantidad de sustancia
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿A qué corresponde este valor: 6,022 x 1023?
Masa
Numero de Avogadro
Peso molecular
Volumen
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