Because water is polar , it is an excellent solvent for polar molecules. Water is cohesive. This means that water molecules are held together byhydrogen bonds. As a result, evaporation of water from a surface requiresenergy to break the H-bonds, and thus sweating is a mechanism for losing excessbody heat. So ice floats.
Water resists temperature changes.
Before the temperature of waterchanges, energy must be used to break the hydrogen bonds. This causes water toresist changes in environmental temperature. Acids are compounds that add hydrogen ions to a solution, bases lower hydrogen ion concentrations. Buffers prevent changes in pH byabsorbing or releasing hydrogen ions. Can bond with other carbons to form chains or rings Forms covalent bonds with many other elements, including nitrogen, oxygen,hydrogen, allowing for an infinite number of molecular combinations.