Physical properties of ice, water and steam are different. What is the chemical composition of water in all the three states?

The chemical composition of water remains consistent across all three states: ice, liquid water, and steam. In each form, water is made up of two hydrogen atoms and one oxygen atom, represented by the chemical formula H₂O.

States of Water

While the composition is the same, the arrangement of molecules differs:

• Ice: In solid form, water molecules are arranged in a rigid structure, which makes ice less dense than liquid water.
• Liquid Water: Molecules are more loosely packed, allowing them to move freely, which gives water its fluid characteristics.
• Steam: In gaseous form, water molecules are far apart and move rapidly, resulting in a low density.

Key Takeaways

Regardless of whether water is in solid, liquid, or gas form, its fundamental chemical structure remains unchanged. This consistency is crucial for various natural processes and life on Earth.