C + o²-> оксид C (3)

The equation you have mentioned is the formation reaction for carbon oxide (C₃O₂). However, the equation you have written, "c + o²-> оксид C (3)", is incorrect. Here's the correct balanced equation:

2C + O₂ → 2C₃O₂

In this reaction, carbon (C) reacts with oxygen gas (O₂) to form carbon oxide (C₃O₂). The reaction involves two moles of carbon reacting with one mole of oxygen gas to produce two moles of carbon oxide.