The Plastic Tide
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
¿Qué es un átomo?
Back
La unidad básica de un elemento químico, compuesta por protones, neutrones y electrones.
2.
FLASHCARD QUESTION
Front
¿Qué es una molécula?
Back
Un grupo de dos o más átomos unidos por enlaces químicos.
3.
FLASHCARD QUESTION
Front
¿Cuál es la fórmula química del amoníaco?
Back
NH3
4.
FLASHCARD QUESTION
Front
¿Qué estado de la materia tienen los átomos en un gas?
Back
Los átomos en un gas están en un estado de alta energía y se mueven libremente.
5.
FLASHCARD QUESTION
Front
¿Qué es un combustible?
Back
Una sustancia que se puede quemar para producir energía.
6.
FLASHCARD QUESTION
Front
¿Cuál es la fórmula química del etanol?
Back
C2H5OH
7.
FLASHCARD QUESTION
Front
¿Qué es la vitamina E?
Back
Un grupo de compuestos que actúan como antioxidantes y son esenciales para la salud.
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