If the formula for my gas oil mix is C10H22 and the formula for gasoline is C8H18, which one is better for the environment and by how many moles?

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

Find the mass, in grams, of 5.00*10^23 molecules of f2

The volume of an unknown substance in a sealed glass jar is 50 milliliters. the volume of the jar is 200 milliliters. which state of matter could the substance be?