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Mathematics 11 Online
OpenStudy (anonymous):

I know that this is the mathematics side of OpenStudy, but I need some help with Physics, and no one is answering on that side. Can someone help me?

OpenStudy (anonymous):

I can try.

OpenStudy (anonymous):

Okay. Well my question is, What methods do scientists use to determine if change is chemical or physical?

OpenStudy (anonymous):

A physical change could be manifested in a change in a measurable quantity like mass or length - basically some dimensional change. To observe the change, you would measure with an appropriate tool, like a scale or a ruler. Not sure about chemical changes, I'm no chemist :)

OpenStudy (anonymous):

Though I suppose you could measure change in salinity or pH, which is really just a measure of concentration of one substance or another.

OpenStudy (anonymous):

Okay, thanks for the help. this is actually such a great help to me for my assignment.

OpenStudy (anonymous):

np

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