Search results
Results from the WOW.Com Content Network
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
The diamond is a matrix transformation of a graph of the anions (sulfate + chloride/ total anions) and cations (sodium + potassium/total cations). [ 4 ] The Piper diagram is suitable for comparing the ionic composition of a set of water samples, but does not lend itself to spatial comparisons.
When a salt of a metal ion, with the generic formula MX n, is dissolved in water, it will dissociate into a cation and anions. [citation needed]+ + (aq) signifies that the ion is aquated, with cations having a chemical formula [M(H 2 O) p] q+ and anions whose state of aquation is generally unknown.
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; ... Pages in category "Anions" The following 99 pages are in this category ...
Ions consisting of only a single atom are termed atomic or monatomic ions, while two or more atoms form molecular ions or polyatomic ions. In the case of physical ionization in a fluid (gas or liquid), "ion pairs" are created by spontaneous molecule collisions, where each generated pair consists of a free electron and a positive ion. [ 5 ]
Polyatomic cations of the same element are named as the element name preceded by di-, tri-, etc., e.g.: Hg 2+ 2 dimercury(2+) Polyatomic cations made up of different elements are named either substitutively or additively, e.g.: PH + 4 phosphanium; SbF + 4 tetrafluorostibanium (substitutive) or tetrafluoridoantimony(1+)
Ionic compounds containing hydrogen ions (H +) are classified as acids, and those containing electropositive cations [57] and basic anions ions hydroxide (OH −) or oxide (O 2−) are classified as bases. Other ionic compounds are known as salts and can be formed by acid–base reactions. [58]
Thus sodium chloride (with a low positive charge (+1), a fairly large cation (~1 Å) and relatively small anion (0.2 Å) is ionic; but aluminium iodide (AlI 3) (with a high positive charge (+3) and a large anion) is covalent. Polarization will be increased by: high charge and small size of the cation Ionic potential Å Z+/r+ (= polarizing power)