3. How many grams of sodium oxide are formed when 35 grams of each reactant is used in the following equation? Which reactant is the limiting reactant, sodium
or iron Ill oxide?
6 Na + Fe2O3 → Na2O + 2 Fe

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.