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The chestnut-crowned antpitta (Grallaria ruficapilla) is a species of bird in the antpitta family, Grallariidae. It is found in Colombia, Ecuador, Peru, and Venezuela. It is around 18 to 23 centimetres (7.1 to 9.1 in) long, with a mass of 70 to 98 grams (2.5 to 3.5 oz). The sexes have the same plumage.
Pinochle. Aces around, dix or double pinochles. Score points by trick-taking and also by forming combinations of cards into melds. By Masque Publishing. Advertisement. Advertisement. Feedback. Help.
[238] [239] Over 60 publishers have partnered with The Wikipedia Library to provide access to their resources: when ICE Publishing joined in 2020, a spokesman said "By enabling free access to our content for Wikipedia editors, we hope to further the research community's resources – creating and updating Wikipedia entries on civil engineering ...
Quantum chemistry computer programs are used in computational chemistry to implement the methods of quantum chemistry. Most include the Hartree–Fock (HF) and some post-Hartree–Fock methods. They may also include density functional theory (DFT), molecular mechanics or semi-empirical quantum chemistry methods.
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Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.