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.
A water molecule is a __ molecule because the oxygen atom pulls electrons closer to it than the hydrogen atoms do, forming a molecule that is slightly more positive at one end than at the other.