Exercice chimie 5eme

Exercice chimie 5eme Source google image: https://cdn.pass-education.fr/wp-content/uploads/images-fiches/2013/12/img_Circuit-%C3%A9lectrique-en-s%C3%A9rie-%E2%80%93-Exercices-corrig%C3%A9s-%E2%80%93-5%C3%A8me-%E2%80%93-Physique-%E2%80%93-Chimie-%E2%80%93-Coll%C3%A8ge-page-1.jpg