Calculate For the reaction described in question 30, the concen-trotion of CH 3 CHO is found to increase from 0.0300mol / l to 0.0500mol / L in 42.5 seconds. Express the average rate of the reac-tion in mol CH3CHO produced/L. s. CAN SOMEONE PLEASE ANSWER MY QUESTION

Asubject in a clinical research trial experiences a serious, unanticipated adverse drug experience. how should the investigator proceed, with respect to the irb, after the discovery of the adverse event occurrence? a. do not report the adverse drug experience to the irb since it is a common adverse experience.b. report the adverse drug experience to the irb only if there are several other occurrences.c. report the adverse drug experience as part of the continuing review report.d. report the adverse drug experience in a timely manner, in keeping with the irb's policies and procedures, using the forms or the mechanism provided by the irb.

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.