In a chemical reaction 300 grams of reactant A combined with 100 grams of reactant B both A and B react to completion what is the mass of the product? 1. 200
2. 300
3. 400
4. It cannot be determined given the information

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.

Which statement best describes the function of enzymes?

How many grams are in 68.2 molecules of br2?