Answers: 3
Chemistry, 21.06.2019 22:30
For the following, determine the type of reaction and then give products.
Answers: 2
Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 22.06.2019 11:40
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.
Answers: 3
Chemistry, 22.06.2019 12:00
In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =
Answers: 1
Lithium hydrogen carbonate, lihco3, decomposes when heated to form li2o, co2, and h2o. how many mole...
Mathematics, 18.10.2021 17:20
Geography, 18.10.2021 17:20
Chemistry, 18.10.2021 17:20
Biology, 18.10.2021 17:20
Geography, 18.10.2021 17:20
Arts, 18.10.2021 17:20
Mathematics, 18.10.2021 17:20
Engineering, 18.10.2021 17:20
Computers and Technology, 18.10.2021 17:20
Biology, 18.10.2021 17:20
Mathematics, 18.10.2021 17:20
Mathematics, 18.10.2021 17:20
Chemistry, 18.10.2021 17:20
Mathematics, 18.10.2021 17:20