1 48 BCE: Julius Caesar was engaged in a civil war with another Roman leader, Pompey. 2  Pompey had been defeated in a battle and fled to Egypt. 3  Caesar was pursuing him but Pompey was assassinated upon his arrival in Egypt before Caesar arrived in Egypt. 4  Caesar was left with idle time.
A water molecule, because of its shape, is a polar molecule. That is, it has one side that is positively charged and one side that is negatively charged. The molecule is made up of two hydrogen atoms and one oxygen atom. The bonds between the atoms are called covalent bonds, because the atoms share electrons.
Water molecules are able to form hydrogen bonds with C) compounds that have polar covalent bonds. Water molecules can only form hydrogen bonds between the partially positively charged hydrogen atoms in a water molecule and a partially negatively charged atom in another molecule. This means that hydrogen bonds can only form between atoms in polar covalent bonds.