(this question is from apex on course: physical science sem 2) which one of the following is an example of a composition reaction? a. 2na (s) + ci2 (g) → 2naci (s) b. zn (s) + 2hci (aq) → znci2 (aq + hz (g) c. cu (s) + 2agno3 (aq) → cu(no3)2(aq) + 2ag (s) d. caco3 (s) → cao (s) + o2 (g)

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size

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.