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Anonymous users2024-01-24OK. Because soda ash is sodium carbonate is salt not alkali, but its aqueous solution is alkaline, the chemical formula is Na2CO3, table salt is sodium chloride, and the acetic acid in vinegar contains C2H3COO. Vinegar and soda ash react to generate carbon dioxide gas, the equation is C2H3COOH + Na2CO3 = C2H3COONa + H2O + CO2, vinegar and sodium chloride do not react, so it can be identified.
There are several ways to do this:
1.Soda ash is sodium carbonate, and the main component of table salt is sodium chloride, so add some vinegar to the two powders, and the bubbling is soda ash (bubbles are carbon dioxide gas produced). >>>More
Salt and vinegar are essential condiments in the kitchen. >>>More
CO2 is introduced into the soda ash solution and CO2 is absorbed (CO2 reacts with Na2CO3 and H2O to form NaHCO3).
Sucrose is red, salt is white, a little transparent, sucrose particles are more delicate, salt particles are square, the taste is different, the smell is different, salt has no smell, brown sugar has a sweet and greasy smell.
1. Chemical method: take a small amount of white solid and dissolve it in water to make a solution. After adding silver nitrate dropwise to the two solutions to produce a white precipitate, dilute nitric acid was added to the white precipitate respectively. The white precipitate disappears as sodium carbonate, and the white precipitate does not disappear as table salt. >>>More