Calculate the percentage of nitrogen that is trapped in the lungs during breathing. Show all your calculations. ​

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

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