During this unit, we learned about the chemistry behind the water we drink. We first learned about the water crisis in Flint, Michigan, as well as ways water is treated and transported to reach the consumer. We also learned about different bonds and forces that contribute to the molecular structure of the water we drink. Finally, we completed a project on how to chemically remove impurities from unclean or unsafe water to make it potable. My group and I did our project on the filtration and desalination of [pseudo-]sea water. Below is our final slideshow and design.

Molecule - a group of multiple atoms—with a neutral net charge—connected by chemical bonds. Water is a molecule composed of one oxygen and two hydrogen atoms connected by hydrogen bonds.

Water - a polar covalent molecule consisting of one slightly negatively-charged oxygen (anion) and two slightly positively-charged hydrogen atoms (cation) connected by hydrogen bonds.

Atom - the smallest unit of matter that forms a chemical element.

Ion - an atom with a non-neutral net charge.

Monatomic Ion - a single atom with a non-neutral net charge.

Polyatomic Ion - multiple atoms (molecule) with a non-neutral net charge.

Cation - an ion with a positive net charge.

Anion - an ion with a negative net charge.

London Dispersion Forces -

Hydrogen Bond - electrostatic force of attraction between a hydrogen atom covalently bound to a more electronegative atom or group and a hydrogen bond acceptor.

Hydrogen Bond Acceptor - an electronegative atom possessing a lone pair of electrons.

Polar Covalent Bond -

Non-Polar Covalent Bond -

Ionic Bond -

Metallic Bond -

Polarity - polarity in molecules is caused by differences in electronegativity between atoms.

Electronegativity - the ability of an atom to attract bonding electrons toward itself.