I need help...

Apr 2019
I pretty much understood everything except this question...
2. The diagram below shows steps in the exothermic chemical reaction of bromomethane with hydroxide to form methanol and bromide ion. The black spheres are carbon atoms, the white spheres are hydrogen atoms, the red spheres are oxygen atoms, and the blue dots are bromine atoms.
• Write a balanced chemical equation to represent the reaction.
CH3Br + OH- → CH3OH + Br-
• Using the figures in the diagram, draw the steps of the reaction in the correct order, label each molecule in the drawings, and describe what is happening in the reaction.
• Draw an energy diagram of the reaction in which you label the energies of each step in the reaction and the activation energy.