Determine the excess reactant and calculate the mass of the remaining excess reactant after 15.0 grams of N2 and 10.0 grams of H2 react.

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves

Correct relationship between molecular formula and empirical formula