1. Water
... water. This is why water expands when it freezes, becoming less dense, and floating on liquid water. Although individual hydrogen bonds are weak, in ice they combine in their thousands to make it very solid. When ice forms on the surface of a pond, it floats and forms an insulating layer, so that beneath the ice, the water ... remains liquid and life can continue. Hydrogen bonding in water ... also allows surface-dwellers to flourish. Water molecules have a much stringer attachment to other water molecules than they do to air molecules. On the surface of a pond a water molecule on the ....
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- Approx Pages: 5