Question

why the density of ice is less then density of water

Answer 1

When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.

Answer 2

Hey buddy,

Do you knw abt the unique structure of ice?
As you know ,Ice is the crystalline form of water
It has highly ordered three dimensional hydrogen bonded structure.

H-bonding give ice an open cage like structure with holes,
Hence density of ice is less than that of water

Hope u got it
#Lycka03