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What is the total reduction potential of a cell in which lithium (Li) is reduced and mercury (Hg) is oxidized?
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Can mercury dissolve in hydrochloric acid?
No. A metal will "dissolve" in acid if it ionizes (going from a neutral metal atom to a cation)... therefore this is an oxidation-reduction problem! Since mercury goes from neutral to cation (positively charged ion), that means it loses electrons, or is oxidized. That means something else needs to be reduced (or gains electrons). In an HCl solution, you have lots of H+ and Cl-. Only H+ can gain electrons, since Cl- is already an anion (negatively charged ion). If you look at a table of standard reduction potentials, you see that 2H+ + 2e- => H2 E=0V 2Hg => Hg22+ + 2e- E=-0.80V Therefore, the total reaction 2H+ + 2Hg => H2 + Hg22+ has a potential E=-0.80V, meaning this reaction is not spontaneous (since E<0V). In real life, adding mercury to HCl (no matter how concentrated) will just result in the mercury sinking to the bottom of the container. Hope this helps.
What is the role of mercury in clemmensen's reduction?
it slowdowns the supply of electons from zinc. other wise reductionofHCl takes place and hydrogen gas releases
What does lithium look like in nature?
Lithium is a soft light metal that possesses a silvery-white color that quickly changes to gray due to oxidation.
Is sulfur more reactive than sodium?
no... Reactivity Table: Lithium, Potassium, Sodium, Calcium, Magnesium, Aluminum, Zinc, Cadmium, Iron, Nickel, Tin, Lead, Arsenic, Antimony, Copper, Mercury, Silver Platinum, and Gold.
What is the balanced equation of mercuryII oxide HgO undergoes a chemical change to form mercury and oxygen?
the balanced equation of mercuryII oxide HgO undergoes a chemical change to form mercury and oxygen is given as .2HgO(s) --> 2Hg(l) + O2(g)The reaction is a redox reaction. Mercury (II) is reduced to zero charge. Oxygen is oxidized to zero charge.Molecule: HgO(s)
What products are produced when lithium reacts with mercury?
A lithium amalgam is formed.
What will be true if mercury and zinc are used to form an electrochemical cell?
A.Mercury will be reduced.B.Liquid mercury will form.E.Zinc will be oxidized.
What two metals are less dense than mercury?
Potassium and Lithium
What are the example of metallic?
Lithium, Barium, Calcium, Magnesium, Francium, Gold, Silver, Mercury
What are the important minerals in Nevada?
* Gold * Silver * Mercury * Copper * Gypsum * Lithium * Petroleum * Diotomite
Can mercury dissolve in hydrochloric acid?
No. A metal will "dissolve" in acid if it ionizes (going from a neutral metal atom to a cation)... therefore this is an oxidation-reduction problem! Since mercury goes from neutral to cation (positively charged ion), that means it loses electrons, or is oxidized. That means something else needs to be reduced (or gains electrons). In an HCl solution, you have lots of H+ and Cl-. Only H+ can gain electrons, since Cl- is already an anion (negatively charged ion). If you look at a table of standard reduction potentials, you see that 2H+ + 2e- => H2 E=0V 2Hg => Hg22+ + 2e- E=-0.80V Therefore, the total reaction 2H+ + 2Hg => H2 + Hg22+ has a potential E=-0.80V, meaning this reaction is not spontaneous (since E<0V). In real life, adding mercury to HCl (no matter how concentrated) will just result in the mercury sinking to the bottom of the container. Hope this helps.
Name a metal on the peridoic table?
Tungsten. Mercury. Tin. Gold. Lithium. Potassium. Calcium. Sodium. Titanium. Chromium.....................................................
Which batteries are used in medical apparatus?
Zinc-mercury oxide battery - often used in hearing-aids. Lithium-iodide battery - Lithium-iodide chemistry is used in pacemakers and hearing aides because of their long life.
What size battery is needed for 1997 Mercury Cougar key remote?
According to the 1997 Mercury Cougar Owner Guide : Each remote takes ( 2 ) coin type , 3 volt lithium batteries ( # 2016 )
Is Mercury mined?
Mercury is mostly obtained by reduction from the mineral cinnabar. Mercury occurs in deposits throughout the world and it is harmless in an insoluble form, such as mercuric sulfide, but it is poisonous in soluble forms such as mercuric chloride or methylmercury. ( Wikipedia ).
What energy can be converted to what energy when mercury oxide is heated please help fast?
Metallic mercury has chemical potential energy, since it can combine with oxygen in an exothermic reaction, therefore, by driving out the oxygen with heat, you are converting heat energy to chemical potential energy.
What is the role of mercury in clemmensen's reduction?
it slowdowns the supply of electons from zinc. other wise reductionofHCl takes place and hydrogen gas releases
