# Which is an unusual property of water? "1. The gas has a smaller volume of than the liquid." "2. The density of the solid phase is LESS than the liquid phase." "3. It has a molecular mass of "18.01*g*mol^-1; "4. The" H-O "bonds are weak."

Apr 26, 2017

$\text{Number 2}$
The most extraordinary property with regard to liquid water is that water as a LIQUID is more DENSE than water as a SOLID, whereas most solids are DENSER than their liquid phases. Hence ice cubes float......on top of your cocktail, or on top of the ocean. And thus we choose $\text{option 2}$.