
5°SEC EXAM. BIM. QUÍMICA
Quiz
•
Other
•
12th Grade
•
Hard
LAURA HS...
Used 7+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3L de un gas se encuentran sometidos a 1248 mmHg de presiones y 27°C de temperatura. Determinar el número de moles presentes en dicho gas.
2
20
4
0,2
10
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
20 litros de hidrógeno a 3 atm de presión están contenidos en un cilindro que tiene un pistón móvil. El pistón se mueve hasta que la misma masa de gas ocupa un volumen de 4 litros a la misma temperatura. Calcular la presión.
10
15
25
30
33
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué tipo de reacción química se observa en la imagen?
De combinación
simple desplazamiento
descomposión
doble desplazamiento
combustión completa
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Indicar el coeficiente del nitrato de zinc :
1
2
3
4
5
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Hallar la relación molar: Ag. oxidante/ Ag. reductor, una vez balanceada la ecuación:
1/2
2
3
1/3
4
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Hallar el coeficiente del oxidante:
2
3
4
5
6
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Si combustionan 220 g de propano (C3H8) con suficiente cantidad de oxígeno, ¿qué peso de CO2 se obtendrá en una combustión completa?
570
770
660
800
840
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