How many moles are in 2.8x10^10 particles of s?

How do you lengthen a pattern piece? (family and consumer science, sewing)

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

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2