Which statement about distinguishing an ionic compound from a covalent compound by its formula is true? a. it is impossible to tell from the formula. b. it is determined by the presence of subscripts. c. knowing the presence of pluses and minuses determines the difference. d. knowing the total number of atomic particles makes it possible.

Why is nh3 classified as a polar molecule

What happens to the temperature of a substance when the average kinetic energy of its particles increases?

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