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chem102-010-20170424-122000.mp4

UD Capture Recording

From  Dana Chatellier 0 likes 19 plays 0  

chem102-010-20170414-122000.mp4

UD Capture Recording

From  Dana Chatellier 0 likes 59 plays 0  

chem102-010-20170405-122001.mp4

UD Capture Recording

From  Dana Chatellier 0 likes 56 plays 0