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Move the Chemistry book and observe what happens.
Objetivos de Aprendizaje
Describe a model for friction a molecular level
Describe matter in terms of molecular motion
The description should includ ...
Hipervinculo Física
Find out how chemical reactions change the temperature of cold and hot packs that are used to treat sprains and other injuries.
It is an educational content of CK-12 Foundation (to access some of the C ...
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