Quizz QMC Prefa 1er parcial GRUPO 13 M.V.M
Quiz
•
Chemistry
•
University
•
Medium
Villegas Bryan
Used 8+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
El atomo fosforo 3115P-3 tiene ... electrones (A=31, Z=15)
15
12
18
16
ninguno
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Determine el numero de moleculas existentes en 5 moles de CaCO3 (Ca=40, C=12, O=16 [UMA])
1,020*1023
3,011*1024
6,023*1024
ninguno
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Si en 586 g de Bromo ocupan un volumen de 200 cm3 determine su densidad en unidades de [lb/pie]
182,91
188
300
ninguno
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Se tiene un helado de canela que se encuentra a 2°C si su temperatura incrementa en 18 °F, ¿Cual sera su temperatura final en escala Celsius?
8
10
12
ninguno
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Una sustancia se sublima cuando cambia de estado:
Solido a Gas
Gas a Solido
Liquido a Gas
ninguno
Answer explanation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La escala Farenheit es una escala:
Absoluta
Relativa
Especifica
ninguna
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿A que grupo y periodo pertenece el elemento cuya distribucion electronica es: 1s22s22p63s23p2
Grupo VA, 3er periodo
Grupo IIIA, 3er periodo
Grupo IA, 2do periodo
Ninguno
Answer explanation
El periodo es 3 debido a que es el nivel mas alto de energia y en la terminacion 3s23p2 (ns np pertenece al grupo A) para determinar el grupo se suman los electrones (2+2=4) Grupo IVA periodo 3
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