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.

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.

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 chemical structure of uracil, showing its single-ring pyrimidine structure. Uracil forms hydrogen bonds with adenine in RNA, contributing to the molecule's structure and function. (Image: Public ...