Chemical bonds are attractions due to electromagnetic force. Chemical bonds are attractions between opposite electric charges. This bond is potential energy that changes to kinetic energy during chemical reactions when the atoms and molecules move around. For example, if you mix together vinegar and baking soda the atoms move apart and come back together to make water, carbon dioxide and a kind of salt.
Try the activities in Charge Challenge and Invisible Investigations to explore electric charges and the electromagnetic force.
Water Molecules