
Autoevaluación 2 cap. 3
Quiz
•
Biology
•
3rd Grade
•
Medium
Alvaro Aja
Used 97+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una balanza analitica se ha colocado en una zona de paso, aislada de las corrientes de aire y bien nivelada
Correcto
Incorrecto
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se deberá de pesar una muestra solida de bicarbonato sódico, deberé tener en cuenta:
El tamaño del vidrio de reloj
La limpieza previa de la balanza
La manipulación del bicarbonato
Todas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En cada uso de la balanza, habrá que calibrar siempre
Verdadero
Falso
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La limpieza de la balanza se realiza con:
Papel seco
Papel húmedo y seco
Pincel
Líquido desinfectante
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se pretende pesar dos reactivos sólidos para hacer una disolución, se deberá de usar: balanza, vidrios de reloj diferentes, el pincel, etiquetas identificativas o rotulador de vidrio.
Verdadero
Falso
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Los materiales higroscópicos se manipularán, teniéndolos previamente en neveras.
Verdadero
Falso
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el último paso tras la limpieza de la balanza en profundidad durante un servicio de trabajo?
Desenchufarla
Colocar el platillo
Comprobar su calibración
Ninguna es correcta
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