A chemical reaction is endothermic and has an activation energy that is twice the value of the enthalpy of the reaction. Identify a diagram depicting the energy of the reaction as it progresses. Reaction progress Reaction progress Reaction progress Energy Energy Energy

Can someone help with this multistep sytheisis and explain why they got their answers.

MULTIPLE CHOICE: Choose the letter of the best answer Please answer all questions correctly 1. The standardization of volumetric solution does not require hydrochloric acid. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 2. In the standardization of its volumetric solution, the primary standard is dried to constant weight, which means drying shall be continued until two consecutive weighings do not differ by more than 0.50 mg. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 3. In the standardization of its volumetric solution, potassium iodide was added to A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E.All of the choices 4. Starch is the indicator of choice for these procedures because it forms intense blue coloration with the solution. A. Permanganometry B. Cerimetry C. Iodimetry D. lodometry E. C and D 5. In the standardization of its volumetric solution, the reaction needs to be…

The distillation flask is best     completely filled with mixture   as large as available       never less than half empty   about 70% full

please help me find the mmol for this one.  Name Molecular Weight  Amount Used  mmol Equivalents  Density  Acetonitrile 41.04 3mL     .786g/mL

This pre-analytical variable can have an effect on chemistry tests which are read visually by spectrophotometry:   Question 8 options:   all answers are correct   icterus   lipemia   hemolysis

Select one for each box

Chemistry HW need help, how to do these caculation and answer these questions?