Geometria molecular

exercicio 7,8 e 9

<div class="item-bar--flex--AcNdN item-bar--left--6blR1"> <div class="item-bar--left-content--af69I item-bar--row--3ZgKF" data-purpose="item-full-title"><span class="item-bar--title-desktop--305o_ item-bar--row--3ZgKF"><span class="item-bar--ellipsis--Lbep0">Resolução dos exercicios</span></span><button class="ud-btn ud-btn-xsmall ud-btn-ghost ud-heading-sm ud-btn-icon ud-btn-icon-xsmall ud-link-neutral item-icon-button--icon-button--1IKG6" type="button" data-purpose="lecture-edit-btn"></button><button class="ud-btn ud-btn-xsmall ud-btn-ghost ud-heading-sm ud-btn-icon ud-btn-icon-xsmall ud-link-neutral item-icon-button--icon-button--1IKG6" type="button" data-purpose="lecture-delete-btn"></button></div> </div>

<p>Introdução a Química Geral: Matéria, Massa, Energia e transformações Químicas</p>