Question

2 способа получения гидроксида натрия

Answer 1

Na2CО3 + Fe2О3 = 2NaFeО2 + CО2

Na2CО3 + Са (ОН)2 = 2NaOH + CaCО3

Answer 2

Na+ H20-->NaOH

Cu(OH)2+Na2SO4-->2NAOH + CuSO4

Answer 3

Ways to Obtain Sodium Hydroxide

1. Electrolysis of Sodium Chloride (NaCl): Sodium hydroxide can be obtained through the electrolysis of a sodium chloride solution. This process involves passing an electric current through a sodium chloride solution to produce sodium hydroxide, chlorine gas, and hydrogen gas.

2. Chemical Reactions Involving Sodium Compounds: Sodium hydroxide can also be obtained through various chemical reactions involving sodium compounds. For example, the reaction of sodium hydroxide with carbon dioxide produces sodium carbonate and water. Additionally, the reaction of sodium hydroxide with sulfur dioxide produces sodium sulfite and water.

These methods demonstrate the different ways in which sodium hydroxide can be obtained.