
Fenómenos Físicos y Químicos
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Hard
alejandra blanco
Used 2+ times
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24 questions
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1.
FLASHCARD QUESTION
Front
¿Qué son los fenómenos físicos?
Back
No cambian la materia.
2.
FLASHCARD QUESTION
Front
¿En qué unidades se mide la masa?
Back
Kilogramos y gramos.
3.
FLASHCARD QUESTION
Front
¿Qué ocurre en los fenómenos químicos?
Back
Cambia la composición.
Combustión,
(oxidación de H2O a CO2) a fermentación.
4.
FLASHCARD QUESTION
Front
¿Cómo se dividen las sustancias puras?
Back
En elementos y compuestos.
5.
FLASHCARD QUESTION
Front
¿Qué son los elementos?
Back
Sustancias puras que no se pueden separar; todos sus átomos son iguales.
Se encuentran en la tabla periódica.
6.
FLASHCARD QUESTION
Front
¿Qué son los compuestos?
Back
Unión química de 2 o más elementos; sus átomos son diferentes.
Forman parte de las ecuaciones químicas.
7.
FLASHCARD QUESTION
Front
¿Cuál es el elemento más reactivo?
Back
El flúor.
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