CHM345H5 Study Guide - Final Guide: Cyclopropane, Hydrogenation, Epoxide

Draw a mechanism for the addition of HBr in the reaction below.

Draw the reactions and mechanisms for the red cabbage extract experiment ( you will have a reaction with an acid and a reaction with a base). Please show three total reactions and mechanisms. The acid used was HCl and the base used was NaOH. Please answer "why are there color changes? what does this tell you about the frontier energy levels (HOMO and LUMO) of the products compared to the reactants?" Thank you.