The atoms on the surface of a metal tend to react with the oxygen in the air and form an oxide coating. This coating, or tarnish, appears dull and less shiny, and it decreases the ability of a metal to react. Did you observe this? Explain.

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