Final answer:
The chemical bonding of hydrogen and chlorine results in the formation of a compound called hydrogen chloride (HCl), which is a gas and can form hydrochloric acid when dissolved in water.
Step-by-step explanation:
When hydrogen and chlorine chemically bond to form hydrogen chloride (HCl), the result is a compound. A compound is a substance composed of two or more elements that are chemically combined in fixed proportions. In this case, hydrogen (H) and chlorine (Cl) combine in a one-to-one ratio to create hydrogen chloride, which is a gas at room temperature and can dissolve in water to form hydrochloric acid (HCl(aq)).
This is different from a mixture, which involves no chemical bonding and retains the properties of its individual substances. A precipitate is a solid that forms from a solution during a chemical reaction, which is not the case with hydrogen and chlorine combining. An aqueous solution is typically a substance dissolved in water, and while hydrogen chloride can dissolve in water to create a solution (hydrochloric acid), the initial combination of hydrogen and chlorine is the formation of a gas compound.