Overview of Water — Properties & Importance to Life

H$_{2}$S is heavier than H$_{2}$O because S is heavier than O.

H$_{2}$S has ionic bonds, while H$_{2}$O has covalent bonds.

H$_{2}$O experiences hydrogen bonding, while H$_{2}$S does not.

H$_{2}$O has an angular shape with two lone pairs, while H$_{2}$S has a linear shape.