
Preparación para laboratorio de ciencias básicas
Authored by osiris Villarreal
Chemistry
3rd Grade - Professional Development
Used 2+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
La densidad es :
La relación entre el número de moles y los litros de solución.
La relación entre la masa y el volúmen de una sustancia.
La relacón entre el número de equivalente gramos del soluto y los litros de solución
2.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
Si una solución de NaCl pesa 75 g y ocupa un volúmen de 80 ml, cuál su densidad?
0,755 g/ml
1,5 g/ml
0,93 g/ml
3.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
El pH es una medida de acidez o alcalinidad que indica la cantidad de iones de hidrógeno presentes en una solución o sustancia.
verdadero
Falso
4.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
Si una solución tiene un PH de 4 puedo decir que ella es:
Acida
Neutra
Básica
5.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
El material de laboratorio se puede clasificar de acuerdo a su uso en:
Esféricos, cilindricos y rectangulares
Metal, vidrio, plástico y porcelana.
Sostén, volumétricos, recipientes y específicos
6.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
La diferencia entre Balanza Granataria y Analítica La diferencia básica entre estos dos tipos de balanzas, recae en la precisión o sensibilidad y en la capacidad.
Verdadero
Falso
7.
MULTIPLE CHOICE QUESTION
10 mins • 5 pts
El número de moles contenido en 89 gramos de NaCl es:
3 moles
1,5 moles
3,5 moles
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