The chemistry of amino acid side chains is critical to protein structure because ... side chains can form ionic bonds, and polar amino acids are capable of forming hydrogen bonds.

These include wobble base pairs, such as G-U and I-A (inosine-adenine), which have a slightly different geometry and hydrogen bonding pattern. Non-Watson-Crick base pairs can play important roles in ...

Both ethanol and ether have the same molecular mass, however, their melting points and boiling points are different due to the ethanol containing hydrogen bonding. Ether is a symmetrical molecule ...

The dot and cross diagram shows that a water molecule is made up of one oxygen atom joined to two hydrogen atoms ... atoms can form three covalent bonds, so a triple bond forms between them.