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Mathematics 7 Online
OpenStudy (morgengarner):

A compound contains two or more _____. A. simple substances B. elements chemically combined C. elements physically combined D. protons combined with electrons

OpenStudy (astral):

B

OpenStudy (photon336):

how do you know?

OpenStudy (photon336):

didn't mean to be blunt an explanation would help the asker too

OpenStudy (morgengarner):

it said it was right on my test just to let ya noo

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