Una combustión es un ejemplo de un cambio físico
SERPIENTE DE LAVA

Quiz
•
Science, Chemistry
•
9th Grade
•
Medium
MARISELA GOMEZ AGUILAR
Used 15+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
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2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La combustión es una reacción química en donde el oxígeno del aire actúa como comburente, con elementos que constituyen el combustible (principalmente carbono (C) e hidrógeno (H). Estas reacciones químicas liberan energía, aumentando la temperatura local, lo que origina un flujo de calor hacia el exterior.
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3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La combustión es del tipo de reacción endotérmica
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4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Durante la reacción el bicarbonato de sodio se descompone en carbonato de sodio vapor de agua y dióxido de carbono
2NaHCO3--------------NaCO3+H2O+CO2
Falso
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5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mientras que la combustión de azúcar da como producto monóxido de carbono y vapor de agua
C2H5OH+3O2----------------2CO+3H2O
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