
Materia y Medición
Authored by Heilen Arce
Chemistry
University
Used 73+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Selecciona la opción que corresponde a un compuesto
Acero Inoxidable
Azúcar
Cristales de yodo
Un trozo de madera
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Señala la opción que corresponde a una mezcla homogénea
Platino
Colesterol
Aire puro
Agua pura
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Señala la opción que corresponde a una propiedad extensiva del agua
Ebulle a 100ºC
Es incolora
Su densidad a 0ºC es 1,0 g/mL
1,0 kg ocupa un volumen de 1,0 L a 0ºC
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Señala la opción que corresponde a un cambio químico
Cocinar un huevo
Fundir cobre
Ebullir etanol
Disolver sal (NaCl) en agua
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2 personas midieron la masa de 1,0 kg de agua y obtuvieron los resultados adjuntos, por lo que:
La persona 1 es muy precisa y exacta
Ambos son precisos y poco exactos
Ambos son exactos y poco precisos
La persona 2 es poco precisa y muy exacta
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un cubo metálico de 72,50 g mide 2,30 cm de lado, calcula su densidad (g/mL):
(Considera que 1,00 cm3 = 1,00 mL)
31,5
12,2
0,168
5,95
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuántas cifras significativas tiene el número 0,002409?
3
4
6
7
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