Using $N{a_2}C{O_3}$, both temporary and permanent hardness can be removed. If this is true enter 1, if false enter 0.

Hint: The pure, water soluble salt are all types of sodium carbonate. All types are highly alkaline and give water solutions that are moderately alkaline. This has been historically collected in sodium-rich soils from the ashes of plants.

Complete step by step solution:
> Also, because the ashes of these sodium-rich plants were noticeably different as compared to those of timber ashes (once used for the production of potash), sodium carbonate was simply named as the sodium ash. Solvay process is used to form large quantities of sodium carbonate by using sodium chloride and limestone.
$N{a_2}C{O_3}$ is sometimes referred to as washing soda while its chemical name is sodium carbonate. The washing soda will be able to remove temporary and permanent hardness from water. It is water-soluble and contributes a significant amount of carbonate ions to the water. These form insoluble precipitates by dissolving calcium and magnesium ions in water. - Soluble is sodium carbonate, but insoluble are calcium carbonate and magnesium carbonate.
- Sodium carbonate is used in the production of glass, paper, radius, soaps and detergents.
- Sodium carbonate is often used in a variety of fields as a fairly solid base. It is preferred in many chemical processes as a common alkaline because it is less expensive and much safer to handle. Its mildness recommends its application particularly in domestic applications.

Note: Considering as a pH regulator, for instance, it maintains very safe alkaline conditions for the function of most photographic film-developing agents. It is also a common additive to maintain desired pH and carbonate hardness (KH) in swimming pools and aquarium water.