Chemistry

Examples of Acidic Oxides

The acid oxides , also called oxides nonmetallic or anhydrides , are substances that are formed when a nonmetal is chemically combined with oxygen to form a new molecule. Nonmetals are the elements found on the right side of the periodic table; They have more electrons in their last shell than metals and this number varies, so they have various valences with which it can bind oxygen. examples of acidic oxides

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From a single non-metal, several acidic oxides can be formed , and each of these compounds will show different properties, such as: molecular weight, density, chemical stability and reactivity. An important characteristic of acid oxides is that they can be formed under very different conditions. For example, among nitrogen oxides (N 2 O, NO, N 2 O 3 , NO 2 , N 2 O 5 , NO 3 , N 2 O 7 ), the higher ones are generated at temperatures of hundreds or thousands of degrees Celsius .

The general equation for the acid oxide formation reaction is as follows: examples of acidic oxides

No metal + O 2 -> Acid oxide

For the writing of an acid oxide, the symbol for the nonmetal is placed first with the valence of oxygen as a subscript. Next comes oxygen with the valence of the nonmetal as a subscript. This form of cross valences is how all chemical compounds are written. It should be noted that the nonmetal uses its positive valences to form the acid oxide.

Some of the acid oxides are in a gaseous state due to the extreme conditions in which they are formed. These include nitrogen oxides (NOx) and sulfur oxides (SOx); Both types of gases are air pollutants that must be avoided and kept at low levels. In this case, sulfur oxides are used in chemical plants to produce highly pure sulfuric acid.

Nomenclature of acid oxides examples of acidic oxides

To name acidic oxides or anhydrides, two main methods are used:

  1. According to the IUPAC, by prefixes
  2. Traditional way, with the word anhydride

Nomenclature according to IUPAC

Based on the oxide formula and observing the subscripts, we will apply number prefixes (di, tri, tetra, penta, hexa, hepta) to tell how many nonmetal and oxygen atoms are in that compound.

For example: examples of acidic oxides

  • CO: Carbon monoxide
  • CO 2 : carbon dioxide
  • N 2 O 3 : Dinitrogen trioxide
  • NO 2 : Nitrogen dioxide
  • N 2 O 5 : Dinitrogen pentoxide

Traditional nomenclature

In traditional nomenclature, the word “anhydride” is written first and this is accompanied by the name of the nonmetal with the suffix “bear” if the valence is the lowest, or “ico” if the valence is greater. Generally these suffixes are used only for two valences, and if there are more oxides of the same element, the other nomenclature is used for them.

For example: examples of acidic oxides

  • N 2 O: Nitrous oxide
  • NO: Nitric oxide
  • P 2 O 3 : Phosphorous oxide
  • P 2 O 5 : Phosphoric oxide
  • Cl 2 O: Chlorous oxide

30 examples of acid oxides examples of acidic oxides

  1. CO: Carbon monoxide or carbonaceous anhydride
  2. CO 2 : Carbon dioxide or carbon dioxide
  3. N 2 O: Nitrous oxide
  4. NO: Nitric oxide
  5. N 2 O 3 : Dinitrogen trioxide
  6. NO 2 or N 2 O 4 : Nitrogen Dioxide or Dinitrogen Tetroxide
  7. N 2 O 5 : Dinitrogen pentoxide
  8. NO 3 or N 2 O 6 : Nitrogen trioxide or Dinitrogen hexoxide
  9. N 2 O 7 : Dinitrogen heptoxide
  10. P 2 O 3 : Diphosphorous trioxide or phosphorous anhydride
  11. P 2 O 5 : Diphosphorous pentoxide or phosphoric anhydride
  12. SO 2 : Sulfur dioxide or sulfur dioxide
  13. SO 3 : Sulfur trioxide or sulfuric anhydride
  14. SeO: Selenium oxide or selenium anhydride
  15. SeO 2 : Selenium dioxide or selenic anhydride
  16. I 2 O: Iodine oxide
  17. IO: Iodium oxide examples of acidic oxides
  18. I 2 O 3 : Diiodo trioxide
  19. IO 2 or I 2 O 4 : Iodine dioxide or diiodine tetroxide
  20. I 2 O 5 : Diiodo pentoxide
  21. IO 3 or I 2 O 6 : Iodine trioxide or diiodo hexoxide
  22. I 2 O 7 : Diiodo heptoxide
  23. Cl 2 O: Chlorous oxide
  24. ClO: Chloric oxide
  25. Cl 2 O 3 : Dichloro trioxide
  26. ClO 2 or Cl 2 O 4 : Chlorine dioxide or dichloro tetroxide
  27. Cl 2 O 5 : Dichloro pentoxide
  28. ClO 3 or Cl 2 O 6 : Chlorine trioxide or dichloro hexoxide
  29. Cl 2 O 7 : Dichloro heptoxide
  30. F 2 O: Fluorine oxide examples of acidic oxides

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