What would scorch marks on fabric near a bullet wound indicate? An extremely close shooter—within an inch or less

A shooter about a foot away from the victim

A shooter about three feet away from the victim

A shooter at least five feet away from the victim

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Stage in which a typical star has completely stopped fusion