pictures and notes are based and from YouTube Water has 7 Different Properties Why? Because it is POLAR (confused? Check out POLARITY AND HYDROPHILIC VS HYDROPHOBIC) Cohesion: water molecules stick to each other Why? hydrogen bonds (strong polar interactions between water molecules) Adhesion: water sticks to OTHER polar substances Why? polar interacts with polar Surface Tension: water's invisible thick skin Why? Nothing is above surface water molecules (only air) > surface wa

pictures and notes are based and from YouTube Atoms VS Molecules Atoms: any element on the periodic table (Ex: oxygen, nitrogen, phosphorus) Molecules: made of multiple atoms Atoms can be the same (water) or different (nitrogen gas) Polar Molecules: molecules with an uneven electron distribution > positive + negative charges Electronegativity (ONE reason why molecules are polar): measures how strongly an atom attracts electrons High Electronegativity: attracts electrons very