Which two have to do with Movement of Galaxies? (pick 2)

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy