What is water

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trophyhunter1 | College Teacher | (Level 1) Educator Emeritus

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Water is a molecule that contains two atoms of hydrogen and one atom of oxygen. It can exist as a solid, liquid or gas on Earth, depending on the temperature. It covers 70.9 percent of Earth's surface. Living things depend on water to survive. The oxygen atom has a slight negative charge relative to the two hydrogens atoms which are slightly positive, making water a polar molecule. There are strong attractive forces between water molecules. This accounts for capillary action, when water molecules can move up a narrow tube, against the force of gravity, allowing it to travel upwards from roots, to stems to leaves, in the xylem tubes of conducting tissue in plants. It is a universal solvent and important substances for living things such as salt, sugar, acid, alkalis and gases as well as protein, DNA and polysaccharides, can dissolve in it.

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apramey | Student, Grade 10 | (Level 1) eNoter

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Water is a chemical substance with the chemical formula H2O. A water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at ambient conditions, but it often co-exists on Earth with its solid state, ice, and gaseous state (water vapor or steam). Water also exists in a liquid crystal state near hydrophilic surfaces.[1][2] Under nomenclature used to name chemical compounds, dihydrogen monoxide is the scientific name for water, though it is almost never used.[3]

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ayush17 | Student | (Level 1) Salutatorian

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Formulae of water:- H   O

                                2

2 atoms of Hydrogen and 1 atom of Oxygen is called water  

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