Bestway 5.5 m H2O Go! Double Slider Water Slide (Orange/Blue)

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Because of its polarity, a molecule of water in the liquid or solid state can form up to four hydrogen bonds with neighboring molecules. Hydrogen bonds are about ten times as strong as the Van der Waals force that attracts molecules to each other in most liquids. This is the reason why the melting and boiling points of water are much higher than those of other analogous compounds like hydrogen sulfide. They also explain its exceptionally high specific heat capacity (about 4.2 J/g/K), heat of fusion (about 333 J/g), heat of vaporization ( 2257 J/g), and thermal conductivity (between 0.561 and 0.679 W/m/K). These properties make water more effective at moderating Earth's climate, by storing heat and transporting it between the oceans and the atmosphere. The hydrogen bonds of water are around 23 kJ/mol (compared to a covalent O-H bond at 492 kJ/mol). Of this, it is estimated that 90% is attributable to electrostatics, while the remaining 10% is partially covalent. [94] switch between plans, terminate or fail to renew your plan before expiration. Discounted price shown only

Water is an inorganic compound with the chemical formula H 2O. 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 [20]). It is vital for all known forms of life, despite not providing food energy or organic micronutrients. Its chemical formula, H 2O, indicates that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. The hydrogen atoms are attached to the oxygen atom at an angle of 104.45°. [21] "Water" is also the name of the liquid state of H 2O at standard temperature and pressure. In a water molecule, the hydrogen atoms form a 104.5° angle with the oxygen atom. The hydrogen atoms are close to two corners of a tetrahedron centered on the oxygen. At the other two corners are lone pairs of valence electrons that do not participate in the bonding. In a perfect tetrahedron, the atoms would form a 109.5° angle, but the repulsion between the lone pairs is greater than the repulsion between the hydrogen atoms. [90] [91] The O–H bond length is about 0.096nm. [92] In nature, the color may also be modified from blue to green due to the presence of suspended solids or algae. absorbed from air or water) to form glucose and release oxygen. [107] All living cells use such fuels and oxidize the hydrogen and carbon to capture the sun's energy and reform water and CO The refractive index of liquid water (1.333 at 20°C (68°F)) is much higher than that of air (1.0), similar to those of alkanes and ethanol, but lower than those of glycerol (1.473), benzene (1.501), carbon disulfide (1.627), and common types of glass (1.4 to 1.6). The refraction index of ice (1.31) is lower than that of liquid water.

Liquid water can be split into the elements hydrogen and oxygen by passing an electric current through it—a process called electrolysis. The decomposition requires more energy input than the heat released by the inverse process (285.8 kJ/ mol, or 15.9 MJ/kg). [97] Mechanical properties

Water covers about 71% of the Earth's surface, with seas and oceans making up most of the water volume (about 96.5%). [23] Small portions of water occur as groundwater (1.7%), in the glaciers and the ice caps of Antarctica and Greenland (1.7%), and in the air as vapor, clouds (consisting of ice and liquid water suspended in air), and precipitation (0.001%). [24] [25] Water moves continually through the water cycle of evaporation, transpiration ( evapotranspiration), condensation, precipitation, and runoff, usually reaching the sea. Bestway is in strict accordance to the various safety requirement, environmental requirement and industry technical standards and regulations. Founded in 1994, Bestway Global Holding specializes in inflatable leisure products, water sports products, above-ground pools and other outdoor leisure products. Bestway currently represents about 30% of the industry's global market and is sold in over 110 countries. In a vacuum, water will boil at room temperature. [69] Triple and critical points Phase diagram of water (simplified)In a lake or ocean, water at 4°C (39°F) sinks to the bottom, and ice forms on the surface, floating on the liquid water. This ice insulates the water below, preventing it from freezing solid. Without this protection, most aquatic organisms residing in lakes would perish during the winter. [58] Magnetism