Please Help!! This is for my Science Assignment but I dont even know how to do the last part (d; Find frictional force)

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Write a question about how changing temperature affects the gas inside the sports ball

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions