Use the image below to find the density of a ring that has a mass 32g.? orig.-64 beaker with ring-68

Nonmetal halogen family atmoic mass 35

The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?

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