Primer parcial TSQI
Quiz
•
Chemistry
•
2nd Grade
•
Practice Problem
•
Hard
LIZETTE SOSA
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19 questions
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1.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
¿Cuál de los siguientes incisos corresponde a una molécula?
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Teniendo en cuenta la siguiente información, determine qué elementos son isótopos.
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
p= 28; n=26; e= 28
p= 26; n= 28; e= 26
p= 26; n= 28; e=24
p= 24; n= 28; e= 26
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Un elemento desconocido tiene 56 protones, 54 electrones y tiene un número de masa de 135. ¿Cuál es la carga de este ión?¿ Es catión o anión?
2+ anión
2+ catión
2- anión
2- catión
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Un elemento desconocido tiene 56 protones, 54 electrones y tiene un número de masa de 135. ¿Cuántos neutrones tiene?
54
56
81
79
6.
OPEN ENDED QUESTION
3 mins • 1 pt
¿Qué es un isótopo?
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7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Al vidrio se le ha añadido PbO para formar cristales que resplandecen con belleza .¿Cuál es nombre del compuesto ?
Óxido de plomo (II)
Óxido de plomo (IV)
Oxigenuro de plomo
Óxigenuro de plomo (IV)
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