Photoionization processes (e. g., N2 + hν → N2+ + e–) remove UV light with λ <150 nm. Which photoreaction is the principal absorber of UV light in the 150-200 nm range in the upper atmosphere? N2 + hν → 2N O3 + hν → O2 + O O2 + hν → 2O NO + O2 + hν → NO3 N2 + O2 + hν → 2NO

Bose-einstein condensation occurs at what temperature?

Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)