Urinary tract infection. Urine discoloration - it might not be blood in the urine. Red urine - see also other causes of red urine or orange urine than blood in urine. Pink urine - small quantities of blood in urine may appear as pink urine. Kidney (renal) conditions Kidney infection.
Intramolecular force. An intramolecular force is any force that holds together the atoms making up a molecule or compound. They contain all types of chemical bonds. They are stronger than intermolecular forces, which are present between atoms or molecules that are not bonded. Types of intramolecular force.
Among other things, intermolecular forces are important to hydrophilic (water-loving) and hydrophobic (water-hating) interactions. All intermolecular forces are van der Waals forces; that is, they are not true bonds in the sense of sharing or transferring electrons, but are weaker attractive forces. These forces include dipole-dipole forces, hydrogen bonding, and ionic interactions. 1  Dipole-dipole forces exist between polar regions of different molecules. 2  Hydrogen bonding, as the name implies, involves hydrogen. 3  Ionic interactions may serve as intermolecular or intramolecular forces in biological systems.