Identify the correct dipole for the C-F bond in the Lewis structure of fluorobenzene shown using the symbols δ⁺ and δ⁻.   A) (δ⁻)C – F(δ⁻) B) (δ⁺)C – F(δ⁻) C) (δ⁻)C – F(δ⁺) D) (δ⁺)C – F(δ⁺)

Consider the following ionic compounds and determine which would have the largest magnitude of lattice energy. SrO KBr Cao KCI a) Sro +2 -2 b) KBr +1-1 c) CaO +2 -2 d) KCI +1-1 e) All have the same lattice energy Size: Ca2+

What is the enthalpy change when 4.70 grams of HF(g) (molar mass= 20.0 g/mol) are formed by the following reaction?               H2(g)    +    F2(g)    ⟶    2HF(g)                                     ΔH = -537 kJ

Consider the molecules of furan and benzene. The dominant Lewis structure of furan and the two resonance structures of benzene are shown below: H K Book H What is the meaning of the double-sided arrow () connecting the two structures of benzene? Furan Benzene H It indicates that electrons in benzene rapidly change their positions corresponding to the two structures. It indicates that there are two independent coexisting forms of benzene. It indicates a chemical equilibrium between the two distinct structures. It indicates that the second structure can be obtained as a mirror image of the first one. It indicates that benzene exists in a single form, which is an average of the two structures.