2C10H22 + 31O2 = 20Co2 + 22H2O What kind of reaction is this?

That is a combustion reaction.

This is a balanced chemical equation representing a combustion reaction.

To determine the type of reaction, we need to analyze the reactants and products and look for any observable changes in chemical properties.

The given equation represents the combustion of a hydrocarbon, 2C10H22 with oxygen, 31O2, to produce carbon dioxide, 20CO2, and water, 22H2O.

Combustion reactions involve the rapid combination of a substance with oxygen to produce heat and light. In this case, hydrocarbon fuel (C10H22) is burned in the presence of oxygen to produce carbon dioxide (CO2) and water (H2O).

Therefore, the reaction is a combustion reaction.

uhhh, chemical right?