Why is H2O unique?
Water is the only naturally occurring substance on Earth that can be found in three physical states: solid, liquid, and gas. In its solid form (ice), it is less dense than when it is in its liquid form (This is why ice floats in a glass of water). Ice always floats because it is less dense than regular water. Because frozen water molecules form a crystal, they take up more space and have a lower density than regular liquid water.
Why is H2O strong?
This sticking together of like substances is called cohesion. Depending on how attracted molecules of the same substance are to one another, the substance will be more or less cohesive. Hydrogen bonds cause water to be exceptionally attracted to each other. Therefore, water is very cohesive. In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.Atoms join together to form molecules. A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom. That’s why water is sometimes referred to as H2O. A single drop of water contains billions of water molecules.
What is the full form of H2O?
The chemical symbol (see also symbol ) for water. Each molecule of water contains two atoms of hydrogen (H) joined to a single atom of oxygen (O). A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom. That’s why water is sometimes referred to as H2O. A single drop of water contains billions of water molecules.Water (chemical formula: H2O) is a transparent fluid which forms the world’s streams, lakes, oceans and rain, and is the major constituent of the fluids of organisms. As a chemical compound, a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds.