A What is the relationship between the following two compounds? x IV A) constitutional isomers B) different representations of the same molecule O C) completely different/not constitutional isomers Which of the following cycloalkanes has the most angle strain? D) isotopes E) resonance hybrids A) I B) II C) III D) IV E) V

Which energy diagram best matches the proposed mechanism for this endothermic reaction? E + S 2 ES (fast) E + SE + P (slow) Reaction Progress En orgy

Here is a graph of the pressure of ethylene (C₂H₂) in a reaction vessel during a certain chemical reaction. Use this graph to answer the questions in the table below. atm 30- 25- 20.870 15- 10+ 5+ 50 100 150 seconds Is C₂H4 being created or destroyed by the chemical reaction? If C₂H4 is being created or destroyed, what is the rate at which it is being created or destroyed 100 seconds after the reaction starts? Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. If C₂H4 is being created or destroyed, what is the average rate at which it is being created or destroyed during the first 100 seconds of the reaction? 200 Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. 250 created destroyed 300 neither created nor destroyed 0 X 00 0.0 Ś

Particles can collide in any formation and a bond will be formed if the particles speed is high True O False

The Arrhenius equation was derived from observation. True O False

Consider the reaction: H2 (g) +I2 (g) → 2 HI (g) A chemist performed an experiment and monitored the concentration of I2 during the course of the reaction. The red line in the graph below represents the results obtained. Which line in the plot would best represent how the concentration of HI changes during the course of the reaction? Time (s) Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a a b b d d е е Concentration (M)

9. What might the reaction coordinate diagram look like for the following reaction? ii - Free energy Ryn progress

Question 23 Identify the rate-determining step based on the rate law you found in question 23. Given these data for the acid-catalyzed reaction in question 22, fınd the rate law. 0–H [RCOOH], M [R'OH], M (HA], M Initial Rate, Ml·min' || R-c-o–H 0.35 0.35 0.50 4.60 0.50 + HA - R-Ć+ k2 0.62 0.35 8.14 A- 0.35 0.81 0.50 10.6 0.35 0.50 0.75 9.84 0–H Group 1 Rate = k[RCOOH][R'OH] 0–H 0–H k3 O Rate = k[RCOOH][R'OH][HA] R-C+ A + R -0–H R—С—0—Н Rate = k[RCOOR']/{[RCOOH][R'OH]} k4 0–H R'-o+ A- Rate = k[R'OH] Group 2 H Rate = k[RCOOH] 0–H k5 R—С—0—н R-C-0–R' + H2O + HA R-o+ A- Group 3 H. Step 2 or Step 3 Step 1 or Step 2 Step 1 or Step 3 Step 2 Step 1