Which of the following lists of elements are in the same PERIOD? * Li, Be, Fr, O
Sc, B, C, Ne
Ca, V, Cu, Kr
He, Ne, Ar, Kr

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

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume

An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8