A student has an unknown sample. How can spectroscopy be used to identify the sample? It can identify the elements in the sample. It can determine the number of electrons in the sample. O It can determine the ratio of the elements in the sample. It can determine the molecular structure of atoms in the sample.

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