Your teacher hands you a small sample of a mystery metal and the chart seen here. Available to you for lab use are: ruler, 100mL graduated cylinder, 100 mL beaker, bunsen burner, analytical balance, and a crucible. Using only the materials provided: explain how you would measure the properties needed for determining density; using your own hypothetical data from the above procedure, calculate the density of a sample; and use your calculations to show how you would determine the identity of the sample.

What does the process of natural selection involve

Match the acid base pairs by arranging the acid name with the conjugate base formula. hydrogen carbonate hydrogen phosphate carbonic acid read water sulfuric acid phosphoric acid a. co32- b. hso4- c. hco3- d. po43- e. h2po4- f. oh-

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.