There are three different possible isomers of a dibromoethene molecule, c2h2br2c2h2br2 . one of them has no net dipole moment, but the other two do. draw lewis structures for each of these isomers. include hh atoms. nonpolar c2h2br2c2h2br2 isomer (one isomer)

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

What is formed when amino acids form long chains or polymerize

Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature