Can anyone help with any of these questions? I believe 58-59 are on Chegg so if someone has that answer can you please tell me? I really need help

The a metal retainer that keeps the rolling elements evenly spaced. n a. seal n b. separator n c. bearing n d outer race

If a balloon is taken outside on a very cold day, what will occur?

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