REACCIONES QUÍMICAS 2º ESO
Flashcard
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
¿Qué es una reacción química?
Back
Es un proceso en el que una o más sustancias (reactivos) se transforman en otras sustancias (productos) mediante la ruptura y formación de enlaces químicos.
2.
FLASHCARD QUESTION
Front
Ejemplo de reacción química:
Back
La oxidación del hierro, que produce óxido de hierro (herrumbre).
3.
FLASHCARD QUESTION
Front
¿Qué es una transformación física?
Back
Es un cambio en el estado o forma de una sustancia sin alterar su composición química.
4.
FLASHCARD QUESTION
Front
Ejemplo de transformación física:
Back
La evaporación del agua.
5.
FLASHCARD QUESTION
Front
¿Qué es la ley de conservación de la masa?
Back
Establece que en una reacción química, la masa total de los reactivos es igual a la masa total de los productos.
6.
FLASHCARD QUESTION
Front
¿Qué es la combustión?
Back
Es una reacción química en la que una sustancia reacciona con oxígeno, liberando energía en forma de calor y luz.
7.
FLASHCARD QUESTION
Front
Ejemplo de combustión:
Back
La combustión de la gasolina en un motor.
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