Chemistry Assignment Help, Chamistry Homework Help

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Chemistry Assignment Help is in fact a portal for help in chemistry assignments of any nature and of any level. Chemistry Assignment Help lends a helping hand to students seeking help in chemistry assignments. assignmenthelp.net/chemistry_assignment_help.php

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Chemistry Homework Help: 

Chemistry Homework Help A total guide by www.assignmenthelp.net

Ionic Bond: 

Ionic Bond A chemical bond between two ions with opposite charges, characteristic of salts. Also called electrovalent bond .

Covalent bond: 

Covalent bond A chemical bond formed when electrons are shared between two atoms. Usually each atom contributes  one electron to form a pairof electrons that are shared by both atoms.

Coordinate Bond: 

Coordinate Bond A type of covalent chemical bond in which both the shared electrons are provided by one of the atoms. Also called dative bond or semipolar bond

Hydrogen Bond: 

Hydrogen Bond A hydrogen bond is a type of attractive (dipole-dipole) interaction between an electronegative atom and a hydrogen atom bonded to another electronegative atom. This bond always involves a hydrogen atom. Hydrogen bonds can occur between molecules or within parts of a single molecule. A hydrogen bond tends to be stronger than van der Waals forces, but weaker than covalent bonds or ionic bonds.

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Alkali Metals: Elements which belong to Group IA of the periodic table. Alkaline Earth Metals: Elements which belong to Group IIA of the periodic table.

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Aliphatic: An organic compound in which the carbon atoms are bonded together in the form of a chain. It does not have aromatic rings. Aromatic : Organic compounds that contain a benzene, naphthalene, or analogous ring. Many of these compounds have agreeable odors, which accounts for the use of this term for such compounds.

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Alkanes : Alkanes are a series of organic compounds, consisting of carbon and hydrogen atoms, where all the carbon atoms are bonded to each other only by single bonds. Alkenes (Olefins): Unsaturated organic compounds which have at least one carbon-carbon double bond. Alkynes: A type of unsaturated hydrocarbon compound which has at least one carbon-carbon triple bond

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Acid: An acid is a chemical substance which has a tendency to release hydrogen ions or protons and accept electrons. In an aqueous state, an acid readily produces a large amount of H+ ( aq ) ions. Most of the strong acids get ionized almost completely in the dilute aqueous solution, whereas, the ones that are weak acids, ionize partially.

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Alcohol: An organic compound which consists of a hydroxyl group (--OH) attached to a carbon atom of an alkyl group chain.

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Aldehyde : A functional group of organic compounds, consisting of one atom each of carbon, hydrogen and oxygen. Here, the carbon atom forms a single bond with the hydrogen atom and is bonded to the oxygen atom with the help of a double bond.

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Carboxylic acids are organic acids characterized by the presence of at least one carboxyl group.The general formula of a carboxylic acid is R-COOH, where R is some monovalent functional group. A carboxyl group (or carboxy ) is a functional group consisting of a carbonyl (RR'C=O) and a hydroxyl(R-O-H), which has the formula -C(=O)OH, usually written as -COOH or -CO 2 H

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