What type of molecule is h2o

The figure below shows the result—an approximately tetrahedral geometry around each oxygen atom, consisting of two covalent bonds and two hydrogen bonds. Structure of Water Water is a simple molecule consisting of one oxygen atom bonded to two different hydrogen atoms. Summary Water is a molecular compound consisting of polar molecules that have a bent shape. The oxygen atom acquires a partial negative charge, while the hydrogen atom acquires a partial positive charge.

Molecular water, therefore is a liquid at room temperature, a fact that is profoundly significant for all living things on this planet. Everything dissolves in water. Stone, iron, pots, pans, plates, sugar, salt, and coffee beans all dissolve in water. Things which dissolve are called solutes and the liquid in which they dissolve is called a solvent. The water molecules surround the charged solute; positive hydrogens close to negative charges and negative oxygens close to positive charges on the solute molecule.

All this interaction suspends the solute molecule in a sea of water molecules; it disperses and dissolves easily. Electrons in the bonds between identical atoms H-H are shared uniformly, so the electrons spend equal amounts of time around each atomic center. These covalent bonds are non-polar. Electrons shared between unlike atoms are not shared equally, one atom gets more of the common electrons and is thus slightly negatively charged.

The other atoms gets less than a full share of the electrons and is thus slightly positively charged. Substances which dissolve easily and readily in water sugar, salt, etc. Free courses. All content. Water in all its varied states is expained. This is called the " bond angle ". Copyright information. Publication details Originally published : Monday, 14th February Last updated on : Monday, 26th September Be the first to post a comment Leave a comment.

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Related content. In the theory of the four bodily humours, water was asssociated with phlegm. Water was also one of the Five Elements in Chinese Taoism, along with earth, fire, wood, and metal. Water rights and development. The causes are contamination, global warming and political problems.

More than 2. In , the UK charity WaterAid reported that a child dies every 15 seconds due to easily preventable water-related illnesses.

However, richer countries such as Kuwait can more easily cope with low water availability. In the United States water law is divided between two legal doctrines: riparian water rights, used in the eastern and southern states where there is an abundance of water and the appropriation doctrine or Colorado doctrine used in the arid western states.

Explain it with Molecules. How do Drugs Work? Toggle navigation World of Molecules. Water Molecule -- Chemical and Physical Properties. General The solid state of water is known as ice ; the gaseous state is known as water vapor or steam. The dipolar nature of the water molecule An important feature of the water molecule is its polar nature.

Structure of Water and Ice Shown above is a side by side comparison of a box 10 Angstroms across. Water as a solvent Water is also a good solvent due to its polarity. Cohesion and surface tension The strong hydrogen bonds give water a high cohesiveness and, consequently, surface tension.

Conductivity Pure water is actually a good insulator poor conductor , meaning that it does not conduct electricity well. Electrolysis Water can be split into its constituent elements, hydrogen and oxygen, by passing a current through it. Reactivity Chemically, water is amphoteric: able to act as an acid or base. Purifying water Purified water is needed for many industrial applications, as well as for consumption. Six popular methods for purifying water are: Filtering : Water is passed through a sieve that catches small particles.

The tighter the mesh of the sieve, the smaller the particles must be to pass through. Filtering is not sufficient to completely purify water, but it is often a necessary first step, since such particles can interfere with the more thorough purification methods.

Boiling : Water is heated to its boiling point long enough to inactivate or kill microorganisms that normally live in water at room temperature. In areas where the water is "hard", containing dissolved calcium salts , boiling decomposes the bicarbonate ion, resulting in some but not all of the dissolved calcium being precipitated in the form of calcium carbonate.

This is the so-called "fur" that builds up on kettle elements etc. With the exception of calcium, boiling does not remove solutes of higher boiling point than water, and in fact increases their concentration due to some water being lost as vapour Carbon filtering : Charcoal, a form of carbon with a high surface area due to its mode of preparation, adsorbs many compounds, including some toxic compounds.