Posted by Renee on Wednesday, February 16, 2011 at 5:45pm.
Sodium metal is insoluble in ether - No change but technically you can call the sodium in ether an insoluble mixture and therefore a physical change.
Sodium metal dissolves in water to produce a gas - You get a chemical change happening here because the sodium reacts with the water.
The copper bottom on a frying pan turns black after several heatings - That's a chemical reaction forming copper (II) oxide so it's a chemical change.
physical or chemical property
sodium metal fohrmhs an oxide when heated with oxygen?
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