1. One of the electron transitions in a hydrogen atom produces infrared light with a wavelength of 7.464 x 10 -6 m. What amount of energy causes this transition? 2. Find the energy in kJ for an x-ray photon with a frequency of 2.4 x 1018 1/s.

3. A ruby laser produces a red light that has a wavelength of 500nm. Calculate its energy in joules.

4. What is the wavelength and frequency of a photon with an energy of 1.4 x 10-21J?

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback

Plzz a sample of table sugar (sucrose, c12h22o11) has a mass of 7.801 g. ● a) calculate the number of moles of c12h22o11 in the sample b) calculate the number of moles of each element in c12h22o11 (number of moles of c, number of moles of h & number of moles of o) in the sample. (use your answer from part a as your starting point.) show your work and highlight your final answer. calculate the number of atoms of each element in c12h22o11 (number of atoms of c, number of atoms of h & number of atoms of o) in the sample. (use your answers from part b as your starting for each element.) show your work and highlight your final answer.