Nonpolar aromatic compounds were separated by HPLC on an octadecyl (C18) bonded phase. The eluent was 90 vol% methanol in water. How would the retention times be affected if 65% methanol were used instead?

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

What is the most important factor in determining climates.

How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.