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.

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 ...

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 ...