Question

$2NaOH\, + \,C{O_2}\, \to \,$ .

Answer 1

The chemical name of the compound is Sodium hydroxide. When sodium hydroxide is treated with carbon dioxide the end product is a salt along with the liberation of a water molecule. This reaction is an example of a neutralization reaction.

Complete Step-by-step Answer:
Sodium hydroxide is an ionic compound. It is also known as caustic soda. In its pure form, it exists as a crystalline solid. In the given reaction it acts as a base because $NaOH$ is dissolved in water it yields hydroxide ion ( $O{H^ - }$ ) while carbon dioxide is an acidic gas and when an acid reacts with a base, it gives salt and water and this reaction is called neutralization reaction.
Salt is a general term in chemistry for an ionic compound formed when an acid-base reaction takes place. It is a very versatile compound used in various manufacturing processes like manufacturing soaps and detergents and various pharmaceutical products. It has a white crystalline powder appearance as solid. It is colorless and odorless as a liquid. Carbon dioxide is also a colorless gas with a sharp acidic odor.
Sodium hydroxide forms sodium carbonate when reacted with carbon dioxide.
The reaction is as - $2NaOH\, + \,C{O_2}\, \to \,N{a_2}C{O_3}\, + \,{H_2}O$ .

Additional Information:
In common language, we know Sodium carbonate as washing soda or soda ash. It is a diazonium salt of carbonic acid. It is soluble in water. In its pure form, it is a white powder and is used as an antacid and in the manufacturing of soaps and detergents.

Note:
Sodium hydroxide is used in the manufacturing of bleach-like chlorine. It is also used in the treatment of water by removing heavy metals by the municipality and in food preservation to stop the growth of bacteria and mould.