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Chemistry 15 Online
OpenStudy (anonymous):

Galena is an important economic mineral for which of the following... 1. lead 2. gold 3. platinum 4.zinc

OpenStudy (aaronq):

Pb

OpenStudy (anonymous):

huh?

OpenStudy (aaronq):

Pb is the symbol for lead

OpenStudy (anonymous):

thank you ! =] im taking an earth science class online n i extreamly need help

OpenStudy (aaronq):

nice, earth science is not fun lol imo

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