Explain why atoms of fluorine are smaller than atoms of nitrogen.

A__ is two or more substances that are together in the same place but are not chemically combined

Is pain reliever a prescription drug?

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.