BI101 Unit 1 Discussion. Post Discussion and respond to 1 other students posting. Demonstrate your understanding of chemical bonds by finding and explaining anÿexampleÿof a molecule that contains a covalent bond, one that contains an ionic bond, and one that can form hydrogen bonds. DoÿNOTÿuse water, ammonia or sodium chloride! However, the examples you use here may be the same as the ones you use in your Unit 1 Homework.