9. (popmyma nemecrma Xi Fearrow Xarrow Fe(OH)_(3) 4) FeCl_(2) 1) FeO 2) Fe_(2)O_(3) 3) FeCl_(3) 10. PeakritBom Ha HOII Ba^2+ SIBMSICTCA HOH: 3) NO_(3) 4) Br 1) Cl^- 2) SO_(4)^2-

9. The correct answer is 3) .Explanation:The given chemical equation is . To determine the intermediate compound X, we need to consider the possible reactions that can occur between iron (Fe) and water (H2O) to form iron(III) hydroxide (Fe(OH)3).The possible reactions are:1) 2) From the above reactions, we can see that the intermediate compound X is iron(II) hydroxide (Fe(OH)2). However, the given options do not include Fe(OH)2. Therefore, we need to consider another possible reaction:3) In this reaction, iron (Fe) directly reacts with water (H2O) to form iron(III) hydroxide (Fe(OH)3). Therefore, the intermediate compound X is iron(III) chloride (FeCl3), which is the correct answer.10. The correct answer is 2) .Explanation:The given chemical equation is . To determine the anion present in the compound, we need to consider the possible reactions that can occur between barium ions (Ba2+) and the given options.The possible reactions are:1) 2) From the above reactions, we can see that the anion present in the compound is sulfate ion (SO4^2-), which is the correct answer.