The equation is 2Cr2O3 + 3Ra -> 4CrRaO3

Firstly, note that this is a hypothetical chemical equation created based on chemical rules, but not presented in reality because Ra (Radium) is a radioactive and poisonous element, which is not used in regular chemical reactions.

1. Detailed information about the equation 2Cr₂O₃ + 3Ra -> 4CrRaO₃:

   • This equation represents the chemical reaction between chromium(III) oxide (Cr₂O₃) and radium (Ra), resulting in chromium radium oxide (CrRaO₃).
   • According to the balanced equation, 2 mol Cr₂O₃ reacts with 3 mol Ra to produce 4 mol CrRaO₃.

2. Reaction conditions:

   • The specific conditions of this reaction are not determined, but generally, it may require high temperature, high pressure, and/or the presence of a catalyst.

3. Reaction process:

   • Chromium(III) oxide and radium react to form chromium radium oxide.

4. Phenomena occurred:

   • As this is a hypothetical reaction, there are no specific details about the phenomena occurred. However, theoretically, there might be changes in color, shape, and/or volume of the reaction environment.
   • Also note that radium is a radioactive element, so any reaction involving radium would create radiation emission.