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Chemistry 8 Online
OpenStudy (anonymous):

a hypothesis is valid only if

OpenStudy (anonymous):

if it is proven! welcome to open study!

OpenStudy (doc.brown):

it is tested! welcome to SCIENCE!!!

OpenStudy (anonymous):

when experiments proofs it!

OpenStudy (anonymous):

am i right @dan815 ?

OpenStudy (jfraser):

it is testable

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