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- Dictionarywater/ˈwɔːtə/
noun
- 1. a colourless, transparent, odourless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms: "sodium chloride dissolves in water" Similar
- 2. a stretch or area of water, such as a river, sea, or lake: "the lawns ran down to the water's edge" Similar Opposite
verb
- 1. pour or sprinkle water over (a plant or area) in order to encourage plant growth: "I went out to water the geraniums" Similar Opposite
- 2. (of a person's eyes) fill with tears: "Rory blinked, his eyes watering" Similar
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Water is an inorganic compound with the chemical formula H 2 O. It is a transparent, tasteless, odorless, and nearly colorless chemical substance, and it is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent).
Jul 11, 2024 · Water is a vital substance for life, composed of hydrogen and oxygen and existing in different states. Learn more about its chemical formula, structure, molecule, and facts at Britannica.com, the online encyclopedia of science and history.
Water is a tiny molecule. It consists of three atoms : two of hydrogen and one of oxygen. Water molecules cling to each other because of a force called hydrogen bonding. It's the reason why water can do amazing things. Water is a shape-shifter. It exists in three states on Earth: liquid, gas, and solid:
Jun 23, 2022 · Each molecule of water is made up of three atoms: two hydrogen atoms locked in a sort of triangle with one oxygen atom—giving us the famous chemical formula H 2 O. The slightly imbalanced structure of water molecules (explained in the box below) means they attract and stick to many different substances.
May 29, 2023 · Water Definition (1) (biochemistry) A chemical substance, with chemical formula H 2 O, that is a clear, colorless, odorless, and tasteless liquid that may also occur in various forms such as gas (water vapor) and solid (ice)(2) An aqueous solution of a substance, for example, ammonia water, wastewater (3) A body of water, like seas, rivers, and lakes, and naturally-occurring water like mineral ...
May 3, 2019 · Water is amphoteric, which means it can act as both an acid and a base. Self-ionization of water produces H + and OH - ions. Ice is less dense than liquid water. For most materials, the solid phase is denser than the liquid phase. Hydrogen bonds between water molecules are responsible for the lower density of ice.
Jun 8, 2018 · Pure water has a neutral pH of 7, which is neither acidic (less than 7) nor basic (greater than 7). The water molecule is highly cohesive — it is very sticky, meaning water molecules stick to each other. Water is the most cohesive among the non-metallic liquids. Water molecules are also adhesive in that they stick
Water in three states: liquid (including the clouds, which are aerosols), solid and gas (water vapour). Water (H 2 O) is a transparent, tasteless, odourless, and almost always colourless chemical substance and covers about 71% of Earth's surface.. No known life can live without it. Water is essential for life. This has to be qualified a bit. There are some forms of life which can survive ...
The molecule of water. A molecule is an aggregation of atomic nuclei and electrons that is sufficiently stable to possess observable properties — and there are few molecules that are more stable and difficult to decompose than H 2 O. In water, each hydrogen nucleus is bound to the central oxygen atom by a pair of electrons that are shared between them; chemists call this shared electron pair ...
Feb 6, 2020 · Water Definition. Water is a chemical compound consisting of two hydrogen atoms and one oxygen atom. The name water typically refers to the liquid state of the compound. The solid phase is known as ice and the gas phase is called steam. Under certain conditions, water also forms a supercritical fluid.
