Question

explain why the ice has lower density than water​

Answer 1

Answer: Due to the crystal structure of the solid phase of water, the molecules arrange themselves in a rigid, ordered fashion and end up being, on average, farther apart from each other and thus less dense.  Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density. When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding.

Therefore ice has lower density than water.

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Explanation:

Answer 2

If freeze the water , it increases its volume and becomes ice . Density is mass/volume so its density decreases and it floats on water .

The water molecules are in V - shape and when they come together to form ice ,they arrange in cage like structures .

Now it's volume increase because of hydrogen bonds of water .