The equation Na2O + 2HCl -> 2NaCl + H2O

Detailed information about the equation Na₂O + 2HCl -> 2NaCl + H₂O:
The above chemical equation describes the reaction process between sodium oxide (Na₂O) and hydrochloric acid (HCl) to create sodium chloride (NaCl) and water (H₂O). According to the law of conservation of mass, the number of moles of each element in the reaction before and after must be equal. Thus, we have 1 mole of Na₂O reacting with 2 moles of HCl to produce 2 moles of NaCl and 1 mole of H₂O.

Reaction conditions:
Specific conditions for this reaction are not clearly mentioned, however, the reaction usually easily occurs when both reactants are in soluble form, and are mixed together in a solution.

Reaction process:
The reaction process involves sodium oxide (Na₂O) reacting with hydrochloric acid (HCl) to form sodium chloride (NaCl) and water (H₂O). In this process, sodium and chlorine will form the compound sodium chloride, while hydrogen and oxygen will combine to form water.

Phenomena occurring:
When the reaction occurs, some phenomena can be observed such as changes in the color of the solution, the generation of gas bubbles, or the release of heat. However, the specific phenomena depend on the specific conditions of the reaction.