Form a virtual study group. You do question 1, your friend does question 2. Compare answers. If you disagree, figure out why. That argument is where learning actually happens.
Before hunting for a , you must identify which specific textbook your school uses. The most common title is "Éléments de chimie" published by Chenelière Éducation, often by authors like Lionel Péloquin, Johanne Préfontaine, and others. corrige elements chimie secondaire 5 pdf link