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Vocab: U6
Vocabulary for Chemistry
| Term | Definition |
|---|---|
| Ionic compound | a chemical compound in which ions are held together in a lattice structure by ionic bonds |
| molecular compound | The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms bonded together by the sharing of electrons |
| subscripts | A distinguishing character or symbol written directly beneath or nest to and slightly below a letter or number. In chemical formula writing, the subscript denotes how many atoms or ions of a particular element or polyatomic ion are present. |
| nomenclature | A system naming chemical compounds and for describing the science of chemistry in general. |
| reactant | a substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction |
| product | A substance resulting from a chemical reaction |
| Law of conservation of mass | the notion that mass, or matter, can neither be created nor destroyed |
| coefficient | A number placed in front of a term in a chemical equation to indicate how many molecules or atoms take part in the reaction |
| precipitate | to be seperated from a solution as a solid |
| aqueous | A solution dissolved in water |
| synthesis reaction | a direct combination reaction in which two or more reactants combine to form a single product. Ax +B → AB |
| decomposition reaction | A chemical reaction in which a compound is brocken down into simpler compounds, or even into elements. AB → A + B |
| Single replacement reaction | A chemical reaction in which an element replaces one element in a compound. A single uncombined element replaces another element in a compound. Two reactants yeild two results. A + BC → B + AC |
| double replacement reaction | a molecular process involving the exchange of bonds between two reacting chemical species, which results in the creation of products with similar or identical bondign affiliations. AX + BY → BX + AY |
| combustion reaction | the burning of any substance, in gaseous, liquid, or solid form. A chamical reaction that involves the rapid combination of a fuel with oxygen. fuel + oxygen → heat + water + carbon dioxide |
| activity series | a series of elements that have similar properties, for example, metals, arranged in descending order of chemical activity |
| hydrocarbon | any of numerous organic compounds, such as benzene and methane, that contain only carbon and hydrogen. |
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ii_UnkownWaterz
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