Answer:
Personification
Explanation:
Personification is the attribution of a personal nature or human characteristics to something non-human, or the representation of an abstract quality in human form.
If i am reading this correctly, the answer is object predicate.
Vapor, substance, are all possibilities you can use. Hope this helps :)
C i believe. hydrochloric acid (HCl) is the strongest and from what i remember, nitric acid (HNO3) was the second strongest