22. The second-order reaction 2 Mn(CO)5 -> Mn2(CO)10, has a rate constant equal to 3.0 x 109 M-1 s- 1 at 25°C. If the initial concentration of Mn(CO)5 is 4.0 x 10-5 M, how long will it take for 90.% of the reactant to disappear? A) 1.3 x 10-15 s B) 1.5 × 10-15 s C) 7.5 x 10-5 s D) 1.2 x 102 s

The solvent front distance is from ... Group of answer choices the bottom of the paper to the top of where the solvent reached. the baseline to the top of where the solvent reached. from the top of the spot to the top of the paper. the bottom of the paper to the top of the paper. from the top of the spot to the top of where the solvent reached.

Cypress oil should be used _______ and should be stored in a _______ place. Choose one answer. a. diluted, warm b. diluted, cool c. undiluted, dark d. undiluted, light

Draw the sktech graph i want to know if i did it right

kindly help me how to get or how they solve the  Average Height kindly show some solution on how did they get the answer

Consider a compound that exhibits negative solvatochromism.  If the compound is green when dissolved in a very non-polar solvent, what color might the solution change to if the solvent was made more polar?  (Choose the BEST answer.) Group of answer choices violet (purple) red any color other than green blue

I only need help with questions three, please solve but always explain. I am not sure what the question is asking, and no other techniques come to mind when thinking about how to dry crystals more.

GENERAL INSTRUCTION: 1. All answers to be entered via short answer are in the numerical format and presented up to the 3rd decimal place. Add trailing zeros if necessary, to complete your answer. NO NEED TO INCLUDE THE UNIT. For uniformity of answers, please be guided by the following examples: If your answer is 5.627594, enter 5.628 If your answer is 3.129934, enter 3.130 If your answer is 8.38, enter 8.380 If your answer is 1.2, enter 1.200 If your answer is 25, enter 25.000 If your answer is less than the value of 1, always place a zero before the decimal point (example: 0.5, enter 0.500) 2. In cases for answers in the exponential format, please be guided by the following examples and format: Do not convert your answer to decimal format If your answer from the calculator is 1.23454566 x 10E-4, enter 1.235x10^-4 (no spaces in between) If your answer from the calculator is 7.379566 x 10E-5, enter 7.38x10^-5 (no spaces in between) 3. For the atomic weights, it should be rounded to…

Iodoform test of Acetone