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.
The weak intermolecular bonds in liquids and solids are therefore often called van der Waals forces. These forces can be divided into three categories: (1) dipole-dipole, (2) dipole-induced dipole, and (3) induced dipole-induced dipole.