Is heating of naphthalene a chemical or a physical change?why?
Answer:
is that also known as butane lighter fluid? if you ignite it, it becomes fire which doesnt' clarify to me which change it is, seems to me like burning something is a chemical and physical change but anyway, is it lighter fluid?
I just looked it up, I guess that is the main ingredient in moth balls. I'm gonna say physical change because I can't see moth balls igniting very easily. What do I win?
it is a physical change because if you just heat somthing up you can cool it right back down to its original state
Naphthalene sublimates even at low temperatures. Heating it only accelerates the process. This is a physical change because the chemical composition does not change, just its physical state (solid to gas). However, if heated to ignition it becomes a chemical change.
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