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Malaysiakini was founded by Premesh Chandran and Steven Gan in November 1999. [5] [6] Frustrated with the constraints they experienced while working for The Sun newspaper, Premesh and Gan decided to use the Multimedia Super Corridor (MSC) pledge to create a space for uncensored journalism.
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 Roman numerals in fact show the oxidation number, but in simple ionic compounds (i.e., not metal complexes) this will always equal the ionic charge on the metal. For a simple overview see [1] Archived 2008-10-16 at the Wayback Machine , for more details see selected pages from IUPAC rules for naming inorganic compounds Archived 2016-03-03 ...
2 H 5) NH + 3 · NO − 2, a heavy yellow liquid which on immersion in a mixture of salt and ice could not be solidified and was probably the first report of room-temperature ionic liquid. [12] [13] Later in 1914, Paul Walden reported one of the first stable room-temperature ionic liquids ethylammonium nitrate (C 2 H 5) NH + 3 · NO − 3 (m.p ...
The ionic strength of a solution is a measure of the concentration of ions in that solution. Ionic compounds, when dissolved in water, dissociate into ions. The total electrolyte concentration in solution will affect important properties such as the dissociation constant or the solubility of different salts. One of the main characteristics of a ...
3 anion, whose chlorine atom is in the +5 oxidation state. The term can also refer to chemical compounds containing this anion, with chlorates being the salts of chloric acid . Other oxyanions of chlorine can be named "chlorate" followed by a Roman numeral in parentheses denoting the oxidation state of chlorine: e.g., the ClO −
Ionic compounds containing basic ions hydroxide (OH −) or oxide (O 2−) are classified as bases. Ionic compounds without these ions are also known as salts and can be formed by acid–base reactions. Ionic compounds can also be produced from their constituent ions by evaporation of their solvent, precipitation, freezing, a solid-state ...
Some ionic compounds contain polyatomic ions, which are charged entities containing two or more covalently bonded types of atoms. It is important to know the names of common polyatomic ions; these include: ammonium (NH + 4) nitrite (NO − 2) nitrate (NO − 3) sulfite (SO 2− 3) sulfate (SO 2− 4) hydrogen sulfate (bisulfate) (HSO − 4 ...