Is water unique in having its solid form less dense than its liquid?
2007-11-17 07:18:45 · 4 answers · asked by Ptericytol 1 in Science & Mathematics ➔ Chemistry
Silicon dioxide is also less dense as a solid than as a liquid.
In ice, hydrogen bonding interactions between different watermolecules gives rise to a rather open structure of linked tetrahedra. In silicon dioxide, much the same kind of thing happens except that the silicon atoms are linked by shared oxygen atoms.
2007-11-17 07:45:05 · answer #1 · answered by Facts Matter 7 · 0⤊ 0⤋
Water is pretty unique, but acetic acid, HC2H3O2, is also less dense in solid form than in liquid.
2007-11-17 15:33:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
think your talking about ice floating on water.
this is form by the hydrogen bonds.
spaces are greater in ice than water so that why ice floats.
2007-11-17 15:28:39 · answer #3 · answered by Anonymous · 0⤊ 0⤋
There may be some other obscure compound out there somewhere that expands when it freezes, but I have never run across it.
2007-11-17 15:25:51 · answer #4 · answered by Dennis M 6 · 0⤊ 0⤋