In an ionic bond, how does a sulfur atom achieve an octet of electrons? By gaining 2 electrons
By gaining 6 electrons
By losing 2 electrons
By losing 6 electrons

Iknow the answer is a but i don't know why

What is the percentage of hydrogen in c2h4

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