This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: Unit 5 – Reaction Rates A chemical reaction is defined by its reactants and products, whose identities must be learned by experiment. Once reactants and products are known, written, and balanced, then stoichiometric calculations can be carried out. 17.1 How chemical reactions occur I. Collision Theory A. The Collision theory explains characteristics of chemical reactions. 1. Higher concentrations lead to faster reaction rates. 2. Higher temperatures lead to greater energy to break bonds B. Particles must collide while favorably oriented C. Particles must collide with enough energy to disrupt the bonds of the molecules D. Reaction rate 1. The rate of disappearance of reactants 2. The rate of appearance of products E. Activated Complex 1. A transitional structure resulting from an effective collision that persists while old bonds are 1....
View Full Document