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Definitions Ch 5
Introductory Chemistry by Zumdahl CHM 1025 VCC
Question | Answer |
---|---|
Binary compounds | Composed of 2 elements 1. Metal + nonmetal 2. Nonmetal + nonmetal |
Binary ionic compound | Positive cation (metal)+ negative anion (nonmetal) |
Type I compounds (cations) | The metal present forms only one type of cation. |
Type II compounds (cations) | The metal present can form 2 or more cations that have different charges. |
Polyatomic ions | Charge entities composed of several atoms bound together. |
Oxyanions | Polyatomic anions that contain a nonmetal and different numbers of oxygen atoms. Ex. Sulfate - The one with smaller # of O atoms ends in ite -- The one with higher # of O atoms ends in ate. -hypo: less than -per: more than |
Acids | Molecules that produce H+ ions (protons) when dissolved in water. Ex. citric acid A molecule with 1 or more H+ attached to an anion. |
IUPAC | Set the rules for naming compounds (IUPAC nomenclature) |
Classes of inorganic compounds | Binary ionic, ternary ionic, binary molecular, binary acid, ternary oxyacid |
Stock System of naming cations | Parent element+ charge in Roman numerals in () |
Fixed charges Ag, Zn, Cd | Ag +, Zn +2, Cd +2 |
Formula unit | Smallest unit of an ionic compound. It is neutral. Cation (metal)goes first and it's followed by anion (nonmetal) |
Binary Molecular Compounds | 2 nonmetal elements |
Molecule | Simplest particle that represents a binary molecular compound |
Ternary Ionic Compounds | 3 or more elements (have polyatomic ionse) |
Aqueous solution | made when a compound dissolves in water. Indicated by aq. Ex. Binary acid: H+ nonmetal [HF (aq)]; Ternary oxyacid [HNO3 (aq)] |
Binary acid | aqueous solution of a compound (H & nonmetal). Ex HF (aq) |
Ternary oxyacid | aqueous solution of a compound (H & oxyanion). Ex. HNO3 (aq) ate- ic acid ite- ous acid |
Empirical Formula | Simplest number of atoms (whole) present in a compound |