The gas phase decomposition of hydrogen iodide at 700 K HI(g)% H2(g) + % I(g) is second order in HI with a rate constant of 1.20×103 M1 If the initial concentration of HI is 1.61 M, the concentration of HI will be 0.182 M after seconds have passed. Submit Answer Retry Entire Group 9 more group attempts remaining

Answer A through D

I don’t know how to find the activation energy in this problem

Question 13 of 26 Using the data in the table, calculate the rate constant of this reaction. A+B C + D Incorrect k= O ÏI Trial 1 2 3 Units. Incorrect [A] (M) 0.390 0.390 0.624 60°F [B] (M) 0.360 0.972 0.360 O Attempt 1 Rate (M/s) 0.0146 0.106 0.0234 10:23 PM 5/30/2022 11

chemistry help needed review  correct sig- fig

3 attempts left Check my work Be sure to answer all parts. The thermal decomposition of phosphine (PH3) into phosphorus and molecular hydrogen is a first- order reaction: 4PH3(g) P4(g) + 6H2(g) The half-life of the reaction is 35.0 s at 680°C. ces Calculate the first-order rate constant for the reaction: 人S Calculate the time required for 95.0 percent of the phosphine to decompose:

Please I got too many wrong question from you guys provide the right answer please

answer must be with the correct sig figs

Enabled: Exam 2 Be sure to answer all parts. Consider the reaction A+B Products From the following data obtained at a certain temperature, determine the order of the reaction. Enter the order with respect to A, the order with respect to B, and the overall reaction order. [A] (M) | [B] (M) Rate (M/s) A. 匚 1.50 1.50 2.50 01 x 07 Reaction 1.50 6.40 x 10 Proctorio is sharing your screen. Stop sharing < Prev 10 of 17

Question 3 of 8 Submit What are the units for the rate constant of a reaction with the rate law, Rate = k[A][B]? %3D A) s-1 B) M s-1 С) М-1 s-1 D) M-2 s-1 E) s M-1