Trevor dropped a bit of olive oil on the kitchen floor while he was cooking. Later, his mother slipped on the spot where he dropped the oil and fell. What can Trevor infer based on his observations?
A.
The oil reduced the friction between the floor and his mother's foot.
B.
Trevor's mother slipped on the spot where he dropped the oil.
C.
Olive oil can be used as an adhesive between two solid objects.
D.
The oil increased the gravitational force on his mother's foot.

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

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 mass of natural gas (ch4) must you burn to emit 276 kj of heat?