6 a Write down the name and formula of the black substance that forms in the experiment above.
b Suggest a way to turn it back into copper.
(pg 92 )

When molecules of water vapor in the air come in contact with a cold can of soft drink , they lose energy ,slow down,and form a liquid due to decrease in ?

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.

What’s the theoretical yield of solid lead