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Roman numerals: for example the word "six" in the clue might be used to indicate the letters VI; The name of a chemical element may be used to signify its symbol; e.g., W for tungsten; The days of the week; e.g., TH for Thursday; Country codes; e.g., "Switzerland" can indicate the letters CH; ICAO spelling alphabet: where Mike signifies M and ...
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 ...
oxalate (C 2 O 2− 4) hydrogen oxalate (HC 2 O − 4) The formula Na 2 SO 3 denotes that the cation is sodium, or Na +, and that the anion is the sulfite ion (SO 2− 3). Therefore, this compound is named sodium sulfite. If the given formula is Ca(OH) 2, it can be seen that OH − is the hydroxide ion.
Here are additional clues for each of the words in today's Mini Crossword. NYT Mini Across Hints 1 Across: T-shirt or blouse — HINT: It starts with the letter "T"
In music, Roman numerals are used in several contexts: Movements are often numbered using Roman numerals. In Roman numeral analysis, harmonic function is identified using Roman numerals. Individual strings of stringed instruments, such as the violin, are often denoted by Roman numerals, with higher numbers denoting lower strings.
Chemical formula Synonyms CAS number C 10 H 16 N 2 O 8: Ethylenediaminetetraacetic acid (EDTA) 6381–92–6 C 12 H 22 O 11: sucrose: 57–50–1 C 18 H 29 O 3 S: sodium dodecyl benzenesulfonate: 2155–30–0 C 20 H 25 N 30: Lysergic acid diethylamide (LSD) 50–37–3 C 123 H 193 N 35 O 37: Common serum albumin (macromolecule) 9048–49–1 ...
The compound can be prepared from the higher oxide: [5] [6] 2Tc 2 O 7 + 15S → 4TcS 2 + 7SO 2. Also, the compound can be prepared by the reaction between both elements in a sealed tube at 450 °C, by the reaction between such components as Tc 2 (O 2 CCH 3) 5 and H 2 S-gas in a flowing system at 450 °C, and by the reaction between K 2 TcCl 6 and H 2 S-gas in sulfuric acid.
2 S to solutions of tin(IV) species. This reaction is reversed at low pH. Crystalline SnS 2 has a bronze color and is used in decorative coating [8] where it is known as mosaic gold. The material also reacts with sulfide salts to give a series of thiostannates with the formula [SnS 2] m [S] 2n− n. A simplified equation for this ...