Hess Law question. please hahah

What is common about these molecules? a. their atoms are held together by covalent bonds. b. they are all made up of the same two atoms. c. their atoms are held together by ionic bonds. d. they are all made up of oxygen atoms only.

Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

The boiling point of liquids is very high what does it indicate