Question

what is the reason behind floating ice on water

Answer 1

because it has density less than water

Answer 2

As water cools below 4°C, the hydrogen bonds adjust to hold the negatively charged oxygen atoms apart. This produces a crystal lattice, which is commonly known as 'ice'. Ice floats because it is about 9% less dense than liquid water.

I have attached one diagram
it will help you
please mark as brainliest answer