Work Step by Step
The molecule shown includes one $X$ atom bonded to four $F$ atoms. Since $X$ is reacting with $F_2$, two $F_2$ molecules are required for the reaction to occur.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.