Chapter 1, Problem 1.63E

Which of the given resonance structures (A, B, or C) contributes most to the resonance hybrid? Which contributes least? Provide steps and explanation

PLEASE HELP NOW URGENT!

PLEASE HELP NOW URGENT!

Draw the condensed structure of an isomer of this molecule: CH3-CH=CH-CH3

PLEASE HELP NOW URGENT!

HELP NOW PLEASE URGENT

How do I solve this Alkyne synthesis homework problem for my Organic Chemistry II class? I have to provide both the intermediate products and the reagents used.

Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the temperature. Additionally, the values of these other properties of X have been determined: melting point enthalpy of fusion 90. °C 8.00 kJ/mol boiling point 130. °C enthalpy of vaporization 44.00 kJ/mol density 2.80 g/cm³ (solid) 36. J.K mol (solid) 2.50 g/mL (liquid) heat capacity 32. J.Kmol (liquid) 48. J.Kmol (vapor) You may also assume X behaves as an ideal gas in the vapor phase. Ex Suppose a small sample of X at 50 °C is put into an evacuated flask and heated at a constant rate until 15.0 kJ/mol of heat has been added to the sample. Graph the temperature of the sample that would be observed during this experiment. o0o 150- 140 130- 120- 110- 100- G Ar ?

Mechanism. Provide the mechanism for the reaction below. You must include all arrows, intermediates, and formal charges. If drawing a Sigma complex, draw all major resonance forms. The ChemDraw template of this document is available on Carmen. Br FeBr3 Br