Fe2o3+2al=al2o3+2fe a welder has 1.873 × 10^2 g fe2o3 and 94.51 g al in his welding kit. which reactant will he run out of first? (options: fe2o3 or 's fe2o3). how much of this reactant should he order to make sure he runs out of both reactants at the same time? he should order of the limiting reactant.

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.