- double compounds
- • двойно съединение• двойна сол
English-Bulgarian polytechnical dictionary . 2013.
double compounds
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double decomposition — n a chemical reaction between two compounds in which part of the first compound becomes united with part of the second and the remainder of the first compound becomes united with the remainder of the second (as in AB + CD > AD + BC) called… … Medical dictionary
Double bond rule — The double bond rule states that chemical elements with a principal quantum number greater than 2 (e.g. Period 3 elements and lower) do not form multiple bonds (e.g. double bonds and triple bonds) with themselves or with other elements.[1] The… … Wikipedia
Double bond — A double bond in chemistry is a chemical bond between two chemical elements involving four bonding electrons instead of the usual two. The most common double bond, that between two carbon atoms, can be found in alkenes. Many types of double bonds … Wikipedia
double decomposition — noun a chemical reaction between two compounds in which parts of each are interchanged to form two new compounds (AB+CD=AD+CB) • Syn: ↑double decomposition reaction, ↑metathesis • Hypernyms: ↑chemical reaction, ↑reaction • Hyponyms … Useful english dictionary
double decomposition reaction — noun a chemical reaction between two compounds in which parts of each are interchanged to form two new compounds (AB+CD=AD+CB) • Syn: ↑double decomposition, ↑metathesis • Hypernyms: ↑chemical reaction, ↑reaction • Hyponyms: ↑ … Useful english dictionary
Double salt — Salt Salt, n. [AS. sealt; akin to OS. & OFries. salt, D. zout, G. salz, Icel., Sw., & Dan. salt, L. sal, Gr. ?, Russ. sole, Ir. & Gael. salann, W. halen, of unknown origin. Cf. {Sal}, {Salad}, {Salary}, {Saline}, {Sauce}, {Sausage}.] 1. The… … The Collaborative International Dictionary of English
double replacement reaction — noun a chemical reaction between two compounds where the positive ion of one compound is exchanged with the positive ion of another compound • Hypernyms: ↑double decomposition, ↑double decomposition reaction, ↑metathesis … Useful english dictionary
double replacement reaction — noun A chemical reaction involving a change of chemical bonds, so that two compounds become two different compounds, in the form … Wiktionary
double-replacement reaction — noun A chemical reaction involving a change of chemical bonds, so that two compounds become two different compounds, in the form … Wiktionary
double decomposition — /dʌbəl ˌdikɒmpəˈzɪʃən/ (say dubuhl .deekompuh zishuhn) noun a chemical reaction between two compounds in which both decompose and two new compounds are formed; metathesis …
double-bond isomers — Two or more olefinic compounds with identical molecular formulas but having the double bond at different locations in the molecule … Petroleum refining glossary
