A 20 g piece of copper is added to 250g of water in a coffee cup calorimeter The temperature of the water increases from 25 oC to 53oC. Calculate the value of heat of the reaction, q. The specific heat of water is 4.184 J/goC.

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