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Topic: Amphoterism

Related Topics

Amphiprotic

Zinc oxide

Amino acid

Aluminum chloride

Redox

Oxidation

Sterno

Oxide

Salt

Sulfate

Hydrolysis

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Titanium

Oxidation state

	New Page 2 (Site not responding. Last check: 2007-11-06)
		In Junior Chemistry, amphoterism is considered chiefly in aqueous systems and generally using the Bronsted/Lowry definition of acids and bases.
		Amphoterism means the ability of a substance to function as both an acid and a base.
		The classification of a substance simply as "amphoteric" or not can be somewhat arbitrary, since this does not indicate "how acidic" a substance needs to be, nor whether the acid/base classification is the Ahrennius (acid produces protons, base produces hydroxide), Bronsted/Lowry (proton donor/proton acceptor) or the Lewis (lone pair donor/lone pair acceptor) definition.
	notes.chem.usyd.edu.au /course/masters/Chem1/Special%20Topics/Acids%20Bases%20Amphoterism/DiscussiononAmphoterism.htm (300 words)

	Amphoterism
		Hopefully you noticed in previous examples that water was sometimes an acid and sometimes a base.
		The ability of some chemicals to act either as an acid or a base is called amphoterism.
		Whether an amphoteric chemical acts as an acid or a base depends on what other chemicals happen to be around.
	dl.clackamas.cc.or.us /ch105-04/amphoter.htm (256 words)

	Amphoterism - Wikipedia, the free encyclopedia
		In chemistry, an amphoteric substance is one that can react as either an acid or base (more generally, the word describes something made of, or acting like, two components).
		Many metals, such as zinc, tin, aluminium, and beryllium, have amphoteric oxides.
		This effect can be used to separate different cations, such as zinc from manganese.
	en.wikipedia.org /wiki/Amphoteric (146 words)

	Chapter 17, Section 5 (Site not responding. Last check: 2007-11-06)
		Examples of amphoteric substances include the hydroxides and oxides of Al, Cr, Zn, and Sn The dissolution of these species in acidic solutions should be anticipated based on the earlier discussions in this section.
		Amphoterism is often interpreted in terms of the behavior of the water molecules that surround the metal ion and that are bonded to it by Lewis acid-base interactions.
		The Fe impurity, however, is not amphoteric and remains as a solid.
	cwx.prenhall.com /bookbind/pubbooks/blb/chapter17/medialib/blb1705.html (1805 words)

	A
		Amphibious landings later occurred in the Korean War and Vietnam War and in the British attack (1982) on the Falkland Islands.
		Amphoterism, in chemistry, the property of certain compounds of acting either as acids or as bases (Acids and Bases), depending on the reaction in which they are involved.
		Many hydroxide compounds and organic molecules that contain both acidic (e.g., carboxyl) and basic (e.g., amino) Functional Groups are usually amphoteric.
	www.hydrocut.com /Terms/A.html (4672 words)

	amphoterism -- Encyclopædia Britannica
		Water is an example of an amphoteric substance.
		The dissolution of hydrogen chloride (an acid) and ammonia (a base) in water may be represented, respectively, by the following equations:
		"amphoterism" Encyclopædia Britannica from Encyclopædia Britannica Premium Service.
	www.britannica.com /eb/article-9000517 (277 words)

	Content File (Site not responding. Last check: 2007-11-06)
		Some molecules or ions such as water are amphoteric [local] or amphiprotic.
		Stated differently amphoterism is found for a small number of metal oxides or metal hydroxides as the transition of metals that form basic oxides to nometals the form acidic oxides.
		Aluminum hydroxide is amphoteric, reacting both with NaOH and HCl.
	www.cci.unl.edu /Teacher/NSF/C12/C12Content.html (7657 words)

	OEDILF
		The following limerick is in a "Tentative" state, which means the information contained within has not yet been verified.
		Amphoterism (am-fuh-TER-i-zum) is most often seen in compounds with hydroxyl radicals (-OH) that act as either acids or bases, depending on the chemical reaction in which they are involved.
		This devil-may-care attitude may be offensive to some.
	www.oedilf.com /db/Lim.php?VerseId=44854 (132 words)

	amphoterism on Encyclopedia.com (Site not responding. Last check: 2007-11-06)
		AMPHOTERISM [amphoterism], in chemistry, the property of certain substances of acting either as acids or as bases depending on the reaction in which they are involved.
		SO, to form aluminum sulfate, Al It reacts as an acid with strong bases to form aluminates, e.g., with sodium hydroxide, NaOH, to form sodium aluminate, Na[Al(OH)
		Let HighBeam Research help you refine your search
	www.encyclopedia.com /html/a1/amphotersm.asp (141 words)

	Survivor Daily Web Journal - APL - Acute Promyelocytic Leukemia - AML SubType
		The doctor explanied that they found and infultrate on my lung, I don't think they are really sure what that means, but it typically looks like a little bit of phnemonia.
		They have increased the dosage level of my amphoterism drug and I didn't have a bad reaction again yesterday.
		It's kind of sad, but I wouldn't recommend that anyone come to Hopkins unless this was the only place they could get the kind of procedure that they needed to survive.
	www.viener.com /thereport.htm (5214 words)

	Amphoterism - ENCYCLOPEDIA - The History Channel UK
		Amphoterism - ENCYCLOPEDIA - The History Channel UK or LOGIN
		Our search facility includes over 50,000 fully cross-referenced historical entries.
		THE HISTORY CHANNEL and BIOGRAPHY are trademarks of AandE Television Networks used under license ©2004 AandE Television Networks.
	www.thehistorychannel.co.uk /site/search/search.php?word=AMPHOTERISM&enc=1836 (228 words)

	PSIgate - Physical Sciences Information Gateway: Search/Browse Results (Site not responding. Last check: 2007-11-06)
		Your search for amphoterism gave 3 hits (New Search)
		(Acids and bases, amphoterism) Demonstration: Three Petri dishes are partially filled with concentrated NaCl solution, concentrated NaOH solution and concentrated HCl solution and placed on an over...
		OVERVIEW Link Rot PRINCIPAL TOPICS Acid-base theory Early Theories-Arrenhius Bronsted-Lowry Acid/base pairs Amphoterism Lewis Acid anhydrides; Base anhydrides Concentration Normality pH More on pH Dissociation-Strong Acids and Bases Approx...
	www.psigate.ac.uk /roads/cgi-bin/search_webcatalogue.pl?term1=amphoterism&limit=0 (120 words)

	Home
		Acid-base pair: An acid and a base pair, which only differs in the presence or absence of a proton, such as hydroxide and water
		Amphoterism: Amphoterism refers to the ability for certain oxides and hydroxo compounds to act either as acids or bases
		Anion: An anion is a negatively charged ion
	www.eidusa.com /pH_glossary_A_to_Z.htm (1358 words)

	Chemistry (Site not responding. Last check: 2007-11-06)
		Conjugate acid-base pairs – differ by proton; weak acid yields strong conjugate base and vice versa
		Amphoterism – ability to react as either acid or base
		Coordinate covalent bond – both electrons furnished by one atom
	www.stanford.edu /%7Ecsewell/culture/chemistry.htm (5138 words)

	UCB CChem Demolab 2002 Calendar
		Chem001A - Replay Lecture 32 - Section 3 Exam III ChemQuizzes Review
		amphoterism - aluminum sulfate, sodium hydroxide, sulfuric acid
		Chem001A - Replay Lecture 33 - Section 2
	www.cchem.berkeley.edu /demolab/2002cal.htm (2233 words)

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