The ionic compound FEL2, a compound of iron and iodine, are dark-violet to black hygroscopic leaflets that are soluble in water and alcohol. HPO 4 2− Hydrogen phosphate . AsO 4 3− Arsenate . ClO 2 − Chlorite . BrO 3 − Bromate . 0 2. 4 Answers. Name both of these compounds. NO 2 − Nitrite . All are black, water-insoluble solids. To quote a source reference. a. As2O5 b. SiL4 c. P4S3 d. P4O10 e. SeO2 f. PCl3 3. NOTE: ALL NUMBERS IN FORMULAS SHOULD BE WRITTEN AS SUBSCRIPTS. Name the following compound: Cl 2 O 7. NO 3 − Nitrate . Actually, some have voiced an opinion that FeI3 can apparently be created with difficulty, and is reputedly very unstable, decomposing into FeI2 and I2. Give the formula of ammonium sulfate. BrO − Hypobromite . BO 3 3− Borate . IO 3 − Iodate . Name the following covalent compounds. Spell out the full name of the compound? please help!! 1. What is the ionic compound FeI2? 19. Explain why Roman numerals must be included in names of MnO2 and Mn2O7. FeI2 * 4H2O. Anonymous. Therefore, the charge of the single iron ion must be \(3+\). The name of any iron-containing compound must reflect which iron ion is the compound. Name the following ionic compounds, specifying the charge of any transition metal cations. Common compound names. An atom of bromine has a mass about four times greater than … Ans: (NH 4) 2 SO 4 21. Examples of molar mass computations: NaCl , Ca(OH)2 , K4[Fe(CN)6] , CuSO4*5H2O , water , nitric acid , potassium permanganate , ethanol , fructose . Capitalize the first letter in chemical symbol and use lower case for the remaining letters: Ca, Fe, Mg, Mn, S, O, H, C, N, Na, K, Cl, Al. Formula. MnO 4 − Permanganate . Name. Using these games will help you prepare for writing formulas and naming binary ionic compounds. $$ FeCl3 + 3KI = FeI3 + 3KCl ; FeI3 = FeI2 + I2 $$ Observation- sulphide) is one of a family chemical compounds and minerals with the approximate formula Fe S. Iron sulfides are often iron-deficient non-stoichiometric. Inorganic Compound; Cobalt Compound; Pollutant; Industrial/Workplace Toxin; Synthetic Compound Toxin, Toxin-Target Database T3D0661 Safety: 36/37-60 Alfa Aesar 23119 , 35730 (: Answer Save. ClO − Hypochlorite . Gervald F. Lv 7. Iron(II) sulfide or ferrous sulfide (Br.E. Ans: dichlorine heptoxide 20. 5 years ago. In this case, the subscript in the formula indicates that there are three chloride ions, each with a \(1-\) charge. Name. Favorite Answer. Formula in Hill system is FeI2: Computing molar mass (molar weight) To calculate molar mass of a chemical compound enter its formula and click 'Compute'. Name the compound CH 3 CH 2 NH 2 Ans: Ethylamine 22. AsO 3 3− Arsenite . In chemical formula you may use: Any chemical element. HSO 3 − Hydrogen sulfite . Iron(II) iodide-4-water. Yes, it bothers me very much! a. Ni3(PO4)2 b. FeI2 c. MnF3 d. CrCl2 e. NaCn f. CuS 2. Similarly, with CuI2, which is likewise unstable. Solution for FeI2⋅4H2O Spell out the full name of the compound. 9 years ago. 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