![subject](/tpl/images/cats/fizika.png)
Physics, 19.01.2021 14:00 makiyabattles
Tad
Era
air
cin
Razona la respuesta.
25 Investiga cómo funcionan los llamados cold packs y
hot packs. ¿Qué compuestos químicos se emplean en
cada caso y qué tipo de proceso tiene lugar para pro-
ducir el enfriamiento o calentamiento necesarios?
26 Corta una manzana por la mitad. Deja una parte
sobre la mesa y guarda la otra en el congelador.
Vuelve a observar las dos mitades al cabo de unas
horas. ¿Qué ha sucedido en cada caso? ¿Cuál es el
fundamento de una nevera o congelador?
Jo
jó
in
e
SO
uímica y el medio ambiente
![ansver](/tpl/images/cats/User.png)
Answers: 2
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25 Investiga cómo funcionan los llamad...
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25 Investiga cómo funcionan los llamad...
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