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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 H2O. It is a transparent, tasteless, odorless, [c] 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 [19] ).
Jun 25, 2024 · water, a substance composed of the chemical elements hydrogen and oxygen and existing in gaseous, liquid, and solid states. It is one of the most plentiful and essential of compounds.
Earth's water is always in motion. It moves inside the planet, across its surface, and in the atmosphere above. Water in lakes, rivers, and oceans turns into vapor and moves into the air through evaporation. Plants draw water from the soil and return it to the air.
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Jun 23, 2022 · What is water? We can answer that question in many different ways. Water is what wets windows when it rains, what we drink when we feel thirsty, and what covers about 70% of Earth's surface. But what exactly is it?
Jun 8, 2018 · Water is everywhere, from huge oceans to invisible water molecules making up water vapor in the air. Of course you can see and feel the physical properties of water, but there are also many chemical, electrical, and atomic-scale properties of water that affect all life and substances on Earth.
Water is a molecule made of two hydrogen atoms and one oxygen atom. Its chemical formula is H 2 O. Like other liquids, water has a surface tension, so a little water can make drops on a surface, rather than always spreading out to wet the surface. [22]
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. Other Names for Water.
May 3, 2019 · Water is the only common compound that exists in solid, liquid, and gas phase under ordinary, natural conditions. 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.
When ice melts to form liquid water, the uniform three-dimensional tetrahedral organization of the solid breaks down as thermal motions disrupt, distort, and occasionally break hydrogen bonds.
Jun 26, 2024 · Chemical properties. Acid-base reactions. Water undergoes various types of chemical reactions. One of the most important chemical properties of water is its ability to behave as both an acid (a proton donor) and a base (a proton acceptor), the characteristic property of amphoteric substances.
