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. There are four major groups of biological compounds,each with different subunits. The diversity of subunits allows proteins to assume anenormous array of different forms and functions. Proteins are the most diverseassemblage of biological compounds. One of the most important classes ofproteins is enzymes .