Do all exothermic phase changes have a negative value for the entropy change of the system?

Which experiment would most likely contain experimental bias ?

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

Which ocean is on the eastern coast of north and south america? arctic ocean indian ocean pacific ocean atlantic ocean