Acertain compound has an empirical formula of ch3. what must be true about this compound? a. it contains three times as many hydrogen atoms as carbon atoms. b. it consists of 75% hydrogen by mass. c. each molecule contains exactly four atoms. d. each carbon atom is bonded to three hydrogen atoms.

Why are the trends and exceptions to the trends in ionization energy observed?

How many moles are in 123.0 grams of kclo4?

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