1, basic oxide
It refers to oxides that can react with acids to form salts and water. Magnesium oxide MgO is a common basic oxide, which reacts with acid to form salt and water.
2. Acid oxides
An oxide that can react with alkali to form salt and water. Carbon dioxide CO2 is an acidic oxide, which reacts with sodium hydroxide to produce sodium carbonate Na2CO3 and water.
3. Basic oxides and acidic oxides
The two will react together, and they are both oxides. According to the properties of oxides, they should be able to react with each other. The reaction between basic oxides and acidic oxides is a common type of reaction between oxides.
4. Magnesium oxide and carbon dioxide
The basic process of this reaction is that oxygen atoms in alkaline oxides interact with oxygen atoms in acidic oxides to form peroxides, which decompose to form salts and water. Magnesium oxide and carbon dioxide can react to produce magnesium carbonate and oxygen: MgO+ CO2 → MgCO3+O2.
5. Basic oxides and acidic oxides
In this process, magnesium carbonate is a salt, which is the product of the reaction between magnesium oxide and carbon dioxide. Oxygen is the decomposition product of peroxide. In production, some useful salts can be prepared by the reaction of basic oxides and acidic oxides.
The reaction between basic oxides and acidic oxides is an important reaction in oxide chemistry, which is helpful to understand the properties and chemical processes of substances and is widely used in practical applications.
Three application fields of salt formation by reaction of alkaline oxides and acidic oxides
1, construction field
Calcium carbonate produced by the reaction of alkaline oxides with acidic oxides, calcium oxide and carbon dioxide is the main component of limestone and marble, which can be used for wall painting, plastering and coating.
2. In the field of agriculture
Basic oxides can be used as carriers of pesticides, which can help pesticides to better adhere to the surface of plants and improve their efficacy.
3. In the medical field
Basic oxides can neutralize gastric acid and treat diseases caused by hyperacidity and calcium deficiency.