When two intermediate chemical equations are combined, the same substance that appears in the same phase can be canceled out, provided that

What is the vapor pressure of a solution with a benzene to octane?

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?

Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.