How Reactions Happen: Steps, Collisions, & Energy - AP Chem Unit 5, Topics 4, 5, and 6

Learn AP Chemistry with Mr. Krug! Get the AP Chemistry Ultimate Review Packet: http://www.ultimatereviewpacket.com/c... Guided notes for these AP Chem videos are now included in the Ultimate Review Packet! Find them at the start of each unit. If you need help reviewing for your other AP Courses, such as Biology, Physics 1, Environmental Science, Calculus AB, Pre-Calculus, Psychology, Macroeconomics, World History, US History, and more, check out http://www.ultimatereviewpacket.com. #apchemistry #apchem In this video, Mr. Krug discusses the intricacies of HOW chemical reactions take place. He starts out with the concept of elementary steps and multi-step processes, then he continues with the collision model of how reactions take place. Then the video concludes with how energy changes over the course of a reaction, highlighting the difference between exothermic and endothermic processes. 00:00 Topic 5.4 Elementary Reactions 04:55 Topic 5.5 Collision Model 10:51 Topic 5.6 Reaction Energy Profile