纯碱加水过会变成什么？

纯碱，即碳酸钠（Na2CO3），是一种常见的无机盐。当纯碱加水时，会发生溶解反应，生成碳酸钠的水溶液。这个过程是一个物理变化，没有新的化学物质生成。

纯碱加水后，其水溶液呈碱性，可以用于多种工业和日常用途。例如，在纺织工业中，纯碱的水溶液被用作洗涤剂，可以帮助去除织物上的污渍和油脂。此外，纯碱的水溶液还可以用于制备其他化学物质，如玻璃、肥皂和清洁剂等。

需要注意的是，当纯碱水溶液暴露在空气中时，会吸收二氧化碳并发生化学反应，生成碳酸氢钠（NaHCO3）。这个过程是一个化学变化，有新的化学物质生成。

总之，纯碱加水后，会生成碳酸钠的水溶液，具有多种工业和日常用途。但是，需要注意纯碱水溶液在空气中的化学变化，以避免不必要的麻烦。

What Happens When Sodium Carbonate Is Mixed With Water?

Sodium carbonate, commonly known as soda ash, is a common inorganic salt. When sodium carbonate is mixed with water, it dissolves to form a solution of sodium carbonate in water. This process is a physical change, as no new chemical substances are formed.

The aqueous solution of sodium carbonate is alkaline and has various industrial and daily uses. For example, in the textile industry, the aqueous solution of sodium carbonate is used as a detergent to help remove stains and grease from fabrics. Additionally, the aqueous solution of sodium carbonate can also be used to prepare other chemical substances such as glass, soap, and cleaning agents.

It is important to note that when the aqueous solution of sodium carbonate is exposed to air, it absorbs carbon dioxide and undergoes a chemical reaction to form sodium bicarbonate (NaHCO3). This process is a chemical change, as new chemical substances are formed.

In conclusion, when sodium carbonate is mixed with water, it forms an aqueous solution of sodium carbonate that has various industrial and daily uses. However, it is essential to be aware of the chemical changes that occur in the aqueous solution of sodium carbonate when exposed to air to avoid any unnecessary troubles.