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The structure of an ammonia molecule consists of one nitrogen atom surrounded by three hydrogen atoms in a trigonal pyramidal molecular geometry. Ammonia is denoted as NH3 in formulas and is also referred to as ammonia g... More »

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The structure of an aspirin molecule is formulated as C9H8O4, meaning that it has nine carbon atoms, eight hydrogen atoms and four oxygen atoms. There are several chemical names for aspirin, including acetylsalicylic aci... More »

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A double helix, or a twisted-ladder shape, is the standard structure of DNA. It consists of two strands of a sugar-phosphate backbone and the nucleotide base pairs adenine, thymine, guanine and cytosine. Adenine pairs wi... More »

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NH3, commonly known as ammonia, is arranged as a T-shaped molecule with nitrogen at its center and three hydrogen atoms at its extremities. Each hydrogen atom is covalently bonded to the nitrogen via an electron pair, an... More »

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One of the most unique things about an organic molecule is that it is considered the molecule of life because it is formed by chains of carbon and hydrogen atoms. Carbon has the ability to bond with other atoms as well a... More »

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Dihydrogen monoxide, sometimes referred to as dihydrogen oxide, is a colorless, odorless compound of two hydrogen atoms locked via a covalent bond with a single atom of oxygen. The resulting molecule is sometimes abbrevi... More »

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CH4, commonly known as methane, is a tetrahedral structure with four hydrogen atoms forming around a central carbon atom. Pictorially, this structure resembles a pyramid in shape, with all four corners equidistant from t... More »

www.reference.com Science Chemistry Atoms & Molecules