Chemistry, 09.07.2019 19:30 Adithya27

What is the importance of metals in medicine?

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Answer from: alejandrosaaved1

Platinum: Platinum based compounds have been shown to specifically effect head and neck tumors.

Gold: Gold salt complexes have been used to treat rheumatoid arthritis. The gold salts are believed to interact with albumin and eventually be taken up by immune cells, triggering anti-mitochondrial effects and eventually cell apoptosis.

Lithium: Li2CO3 can be used to treat prophylaxis of manic-depression.

Zinc: Zinc can be used topically to heal wounds. Zn2+ can be used to treat the herpes virus.

Silver: Silver has been used to prevent infection at the burn site for burn wound patients.

Platinum, Titanium, Vanadium, Iron: cis DDP (cis-diaminedichoroplatinum), titanium, vanadium, and iron have been shown to react with DNA specifically in tumor cells to treat patients with cancer.

Gold, Silver, Copper: Phosphine ligand compounds containing gold, silver, and copper have anti-cancer properties.

Lanthanum: Lanthanum Carbonate often used under the trade-name Fosrenol is used as a phosphate binder in patients suffering from Chronic Kidney disease.

Bismuth: Bismuth is used as an antacid.

Answer from: Quest

each column of the table is called a group. elements in a group share similar properties. groups are read from top to bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o. 2. 3. 4. 5. 6. 7. 8. 9. 2. beryllium. 9.012. 4. sodium. 22.990. 11. 3. magnesium. 24.305. 12. potassium. 39.098. 19. 4. calcium. 40.078. 20. i guess i

Answer from: Quest

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. $hbr$ completely dissociates to $h^+$ and $br-$ ions. a is incorrect because $h_2s$ does not fully ionize to $h^+$ and $hs^-$ ions and some remain as the compound $h_2s$ . c and d are incorrect because, $li_2o$ and $libr$ do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise, if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both $li_2o$ and $libr$ have a complete octet so can not accept any electrons which disqualifies them as acids.

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