Reacciones Químicas

Quiz
•
Chemistry
•
9th Grade
•
Medium
Cristian Ferreira
Used 6+ times
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Rallar una manzana es un cambio
Químico
Físico
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
someter un cubo de hielo a fusión es un cambio
Químico
Físico
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
La putrefacción de una Pera es un cambio
Físico
Químico
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Cocer un huevo es un cambio
Químico
Físico
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
La siguiente imagen demuestra que hay una reacción química porque:
Emite de luz
Liberación de gases
Liberación de energía térmica
Todas las anteriores
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
En el siguiente se puede decir que hay reacción química por:
Liberación de energía térmica
Formación de precipitado
Cambio de color
Liberación de gases
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Los coeficientes estequiométricos faltantes en la siguiente reacción química:
C3H8 + O2 → CO2 + H2O
son:
C3H8 + "3" O2 → CO2 + "4" H2O
C3H8 + "10" O2 → "3"CO2 + "5" H2O
C3H8 + "5" O2 → "3"CO2 + "4" H2O
C3H8 + "10" O2 → "3"CO2 + "5" H2O
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