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Biology 14 Online
OpenStudy (anonymous):

... properties can be observed only when the substances in a sample of matter are changing in to different substances. (fill the blank(..))

OpenStudy (anonymous):

I think its chemical properties

OpenStudy (anonymous):

lets see if anyone else answers if not i will use your answer

OpenStudy (anonymous):

chemical properties

OpenStudy (anonymous):

ok thanks

OpenStudy (anonymous):

chemical properties

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