PS. 3b,c,d Unit 4 Espanol Law of Conservation of Mass Review
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
La sal añadida al agua es un cambio _____
Back
Físico
2.
FLASHCARD QUESTION
Front
Si una reacción química es EXOTÉRMICA, la temperatura....
Back
Aumenta
3.
FLASHCARD QUESTION
Front
La temperatura final es mayor que la temperatura inicial, por lo que esta es una reacción _______.
Back
exotérmica
4.
FLASHCARD QUESTION
Front
Un fabricante de helados experimentó para encontrar qué productos químicos causaban la mayor disminución de la temperatura inicial a la final. ¿Qué fórmula eligió?
Back
MgF2
5.
FLASHCARD QUESTION
Front
¿Cuál de los siguientes es un signo de que ha ocurrido una reacción química?
Back
aparecen burbujas de gas
6.
FLASHCARD QUESTION
Front
Definición de reacción química.
Back
Un proceso en el que una o más sustancias se transforman en una o más sustancias diferentes.
7.
FLASHCARD QUESTION
Front
Ejemplo de cambio físico.
Back
Disolver azúcar en agua.
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