Find the molecular formula for a compound with a mass of 90 amu and the empirical formula HCO

It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.

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

Which substance has non polar covalent bonds