QUESTION IMAGE
Question
notes: changes in matter
change- change in size or shape
change- a new substance is formed when the atoms are
the properties of the new substance are from the properties of the original substances.
evidence of possible chemical changes
- formation of a p rec p i t a d a
2- change in thermal e n e r g y
temperature increases or decreases when two substances are combined.
a forms when two solutions are mixed together.
En un cambio físico solo cambia la apariencia externa (tamaño o forma), mientras que en un cambio químico se forma una nueva sustancia con diferentes propiedades. La formación de un precipitado es una señal de un cambio químico al mezclar dos soluciones.
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- Cambio físico
- Cambio químico, re - organizados
- Diferentes
- Precipitado