Correct: Potassium carbonate, K2CO3, Lithium nitrate, LiNO3, Magnesium sulphate, MgSO4, Calcium carbonate, CaCO3, Copper(II) sulphate, CuSO4, Carbon tetrachloride, CCl4, Carbon disulphide, CS2, Calcium hydroxide, Ca(OH)2, Sodium ethanoate, CH3COONa, Phosphorus pentachloride, PCl5, Aluminium oxide, Al2O3, Zinc sulphate, ZnSO4, Silver chloride, AgCl, Ammonium chloride, NH4Cl, Water, H2O, Potassium manganate(VII), KMnO4, Potassium dichromate(VI), K2Cr2O7, Calcium oxide, CaO, Barium sulphate, BaSO4, Copper(I) chloride, CuCl, Ammonium nitrate, NH4NO3, Lead(II) oxide, PbO, Tin(II) hydroxide, Sn(OH)2, Potassium iodide, KI, Hydrochloric acid, HCl, Iron(II) sulphate, FeSO4, Magnesium carbonate, MgCO3, Sulphuric acid, H2SO4, Sodium chloride, NaCl, Iron(III) chloride, FeCl3, Incorrect: Potassium carbonate, PCO3, Lithium nitrate, LiNO, Lithium nitrate, Li(NO3)2, Calcium carbonate, CCO3, Copper(II) sulphate, Cu2SO4, Carbon tetrachloride, CCl5, Carbon disulphide, CS, Calcium hydroxide, CaOH, Phosphorus pentachloride, PCl, Phosphorus pentachloride, PCl4, Aluminium oxide, AlO2, Zinc nitrate, ZnNO3, Silver nitrate, Ag(NO3)2, Ammonium chloride, NH3Cl, Dinitrogen tetroxide, NO2, Potassium manganate(VII), KMnO7, Potassium dichromate(VI), K2CrO4, Lithium sulphate, LiSO4, Magnesium oxide, Mg2O, Copper(I) chloride, CuCl2, Aluminium oxide, AlO, Lead(II) iodide, PbI, Tin(IV) sulphate, Sn(SO4)2, Potassium bromide, KBr2, Zinc chloride, ZnCl, Iron(II) sulphate, Fe2(SO4)3, Iron(III) oxide, FeO, Nitric acid, H2NO3, Sodium oxide, NaO, Iron(III) chloride, FeCl2,

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