Given the equation representing a phase change at equilibrium:

h2o (s) < --> h2o (l)
which statement describes this equilibrium?
a. the h2o (s) melts fadter than the h2o (l) freezes
b. the h2o (l) freezes faster than the h2o melts
c. the mass of h2o (s) must equal the mass of h2o (l)
d. the mass of h2o (l) and the mass of h20 (s) each remain constant.

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.