7 of 7 Constants Part A If 1.50×105 J of energy is supplied to a flask of liquid oxygen at -183∘C, how much oxygen can evaporate? The heat of vaporization for oxygen is 210 kJ/kg. Express your answer to two significant figures and include the appropriate units. m =

The identities of substances are the same before and after which type of change

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

The same side of the moon always faces earth because the