Question

Запишите уравнения реакций получения следующих оснований: Ca(OH)2, Fe(OH)3, KOH, Mg(OН)2

Answer 1

Ca+CaO+Ca(OH)²+Can(NO³)²

Answer 2

Equations for the Formation of Ca(OH)2, Fe(OH)3, KOH, and Mg(OH)2

Ca(OH)2: The equation for the formation of calcium hydroxide (Ca(OH)2) is: ``` CaO + H2O → Ca(OH)2 ``` This reaction occurs when calcium oxide (CaO) reacts with water (H2O) to produce calcium hydroxide (Ca(OH)2).

Fe(OH)3: The equation for the formation of iron(III) hydroxide (Fe(OH)3) is: ``` FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl ``` This reaction occurs when iron(III) chloride (FeCl3) reacts with sodium hydroxide (NaOH) to produce iron(III) hydroxide (Fe(OH)3) and sodium chloride (NaCl).

KOH: The equation for the formation of potassium hydroxide (KOH) is: ``` K2CO3 + 2HCl → 2KCl + H2O + CO2 ``` This reaction occurs when potassium carbonate (K2CO3) reacts with hydrochloric acid (HCl) to produce potassium chloride (KCl), water (H2O), and carbon dioxide (CO2) [[10]](https://inmt.urfu.ru/fileadmin/user_upload/site_15053/zaochno/Departament_metallurgii_osn_stranica/KHimija/KHimija._Uchebnoe_posobie..pdf).

Mg(OH)2: The equation for the formation of magnesium hydroxide (Mg(OH)2) is: ``` MgCl2 + 2NaOH → Mg(OH)2 + 2NaCl ``` This reaction occurs when magnesium chloride (MgCl2) reacts with sodium hydroxide (NaOH) to produce magnesium hydroxide (Mg(OH)2) and sodium chloride (NaCl) [[4]](https://elib.gsmu.by/bitstream/handle/GomSMU/2694/%D0%A5%D0%B8%D0%BC%D0%B8%D1%8F.pdf?sequence=1&isAllowed=y).

These equations represent the chemical reactions involved in the formation of calcium hydroxide, iron(III) hydroxide, potassium hydroxide, and magnesium hydroxide.