1. classify rust: a. c = compound b. e = element c. he = heterogeneous mixture d. s = homogeneous mixture/solution 2. classify carbon: a. e = element b. c = compound c. s = homogeneous mixture/solution d. he = heterogeneous mixture 3. classify apple juice: a. s = homogeneous mixture/solution b. he = heterogeneous mixture c. c = compound d. e = element

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.

Fossil fuels are organic compounds that are made from

How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4