6 chemical reactions that changed history Published 8 years ago • 2.1M plays • Length 7:56 Download video MP4 Download video MP3 Similar videos 17:16 chemistry lab tour! tips for starting a home lab 6:26 finding chemicals and labware | home lab setup 2:43 student research: organic chemistry lab procedure 0:50 organic chemistry lab tour 2:49 research in synthetic organic chemistry 3:45 chemistry lab tour - spms, ntu