Evaluación diagnóstica QMCA

Quiz
•
Chemistry
•
University
•
Hard
Verónica Bautista Vasquez
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una probeta graduada que contiene 50 ml de agua se introduce un objeto, insoluble en agua, que tiene una masa de 90 g; el volumen del agua asciende hasta la marca de 65 ml. Calcular la densidad del objeto en g/ml
4
5
6
Ninguno
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Convertir 30 °C a Kelvin
212
303
373
Ninguno
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un átomo de flúor contiene:
9 protones, 9electrones y 10 neutrones
10 protones, 9 electrones y 10 neutrones
9 protones, 10 electrones y 9 neutrones
Ninguno
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La siguiente configuración electrónica le corresponde a: 2s22p5
Cl
Br
F
Ninguno
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qué compuesto tiene 2 enlaces dativos?
H2O
H2SO4
CO2
CaCO3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Asignar su correspondiente número de oxidación del átomo de azufre en el ácido sulfúrico:
2
4
6
-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En la siguiente ecuación, el coeficiente de igualación del H2S es: Al2S3+ H2O→ Al(OH)3+H2S
6
4
3
Ninguno
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