Hydrogen bromide breaks down into diatomic hydrogen and bromine in the reaction shown. 2HBr - H2 + Br2 The energy of the reactant is 732 kJ/mol and the energy of the products is 630 kJ/mol. What is the total energy of the reaction? Is this reaction endothermic or exothermic?
(1 point)
A. -102 kJ/mol, endothermic
B. 102 kJ/mol, exothermic
C. 102 kJ/mol, endothermic
D. -102 kJ/mol, exothermic​

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.

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)