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Topic: Manganese(IV) oxide

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Manganese

Manganese(II) chloride

Redox

Potassium

Oxidation

Alkaline battery

Oxidation number

Haematite

Slaked lime

Battery (electricity)

Hydrochloric acid

Associative algebra

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Chemical compound

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	[No title]
		A mixture of manganese(IV) oxide, aqueous potassium permanganate and concentrated sodium hydroxide are heated and change in color.
		Manganese(IV) oxide is heated with 6 M sulfuric acid.
		Manganese(IV) oxide is boiled with 10 M sodium hydroxide.
	people.morehead-st.edu /fs/a.macintosh/redoxhw.doc (2433 words)

	Manganese Summary
		Manganese(IV) oxide (manganese dioxide) is used in the original type of dry cell battery.
		Manganese oxide is a brown pigment that can be used to make paint and is a component of natural umber.
		Manganese(IV) oxide (manganese dioxide) is used in dry cells, and can be used to decolorize glass that is polluted by trace amounts of iron.
	www.bookrags.com /Manganese (4281 words)

	Geochemical Transactions \| Full text \| Speciation and fate of trace metals in estuarine sediments under reduced and ...
		Analyses of zinc EXAFS spectra indicate that zinc is dominantly coordinated in a sulfide phase in the sediments, with a secondary fraction of zinc associated with an oxide component (Fig.
		The Cd–O distance in the oxide component derived from EXAFS analysis (2.31 Å) is typical of cadmium oxide phases and oxygen-coordinated sorption complexes.
		The iron oxide component is best described as recalcitrant phyllosilicate and oxide phases, probably as iron-bearing micas such as illite, muscovite, chlorite or biotite and oxides such as magnetite, chromite, or ilmenite[18] that do not dissolve in the strongly reducing sediments at neutral pH.
	www.geochemicaltransactions.com /content/3/1/81 (10338 words)

	Manganese (IV) oxide is used in the decomposition of hydrogen peroxide. (Site not responding. Last check: 2007-09-11)
		Manganese (IV) oxide is used in the decomposition of hydrogen peroxide.
		Subject: Manganese (IV) oxide is used in the decomposition of hydrogen peroxide.
		Re: Manganese (IV) oxide is used in the decomposition of hydrogen peroxide.
	www.madsci.org /posts/archives/jan2000/948494558.Ch.q.html (68 words)

	The Net Equation: Your Online Source for Chemistry Solutions
		Therefore, batteries include ammonium chloride (for the reduction of ammonium and the consumption of ammonia), manganese(IV) oxide (to consume ammonia), zinc(II) chloride (to consume ammonia), and a solid zinc anode to be oxidized.
		Manganese(IV) oxide is reduced with water to form manganese(III) oxide and hydroxide; the water and hydroxide cancel in the net reaction, leaving no liquid or gaseous products.
		Also common are lead car batteries, in which solid lead, lead(IV) oxide, and sulfuric acid react to form lead(II) sulfate and water, with a potential of 2 volts.
	library.thinkquest.org /C004970/redox/cells.htm (1051 words)

	topic17
		17.3.10 Oxidation of acetone vapour with copper oxides catalyst
		The heights of the detergent suds are similar to the heights using manganese (IV) oxide.
		Note the shimmering colours of the copper surface caused by the heat being maintained in the copper coin from the heat of the chemical reactions on its surface, and the colours of fl copper (II) oxide, red copper (I) oxide (red) and pink copper metal.
	www.uq.edu.au /_School_Science_Lessons/topic17.html (8162 words)

	Ch110_Lec 38_8 December
		Chromic oxide is used as a green pigment.
		Mn(IV) is seen in manganese dioxide (manganese(IV) oxide) a solid brown to fl precipitate.
		Much of the iron ore (various iron oxides) used is the result of biological deposition or bio-induced deposition by a variety of bacteria.
	www.humboldt.edu /~rap1/C110.F03/C110Notes/C110_lec38.htm (871 words)

	Amazing Rust.com - Thermite (Site not responding. Last check: 2007-09-11)
		Generally, thermite is made by mixing Iron Oxide and Aluminum powder and igniting it at very high temperatures (a few thousand degrees).
		Although Copper Oxide thermite is probably the most common of the exotic thermites, one could also use other metal Oxides such as Tin Oxide, Lead Oxide, or any other metal Oxide which could be reacted with a reducing metal (such as Aluminum or Magnesium).
		They key is that the reducing metal must be sufficiently higher on the activity series than the metal Oxide in order to support the single replacement reaction.
	www.amazingrust.com /Experiments/how_to/Thermite.html (902 words)

	Manganese
		Manganese ore was first confused with magnetic iron ore. The most common oxide and mineral is pyrolusite.
		Another promising source of manganese is the "nodules" that are scattered over large portions of the ocean floor.
		These chunks which vary from a few millimeters to a few meters in diameter, consist mainly of manganes and iron oxides.
	nobel.scas.bcit.ca /resource/ptable/mn.htm (177 words)

	John Straub's lecture notes
		A strong bar magnet is used to separate three oxides of manganese by exploiting their varying degrees of paramagnetism.
		To experimentally determine the relative degree of paramagnetism in the three manganese compounds, we segregate the compounds using the strong permanent magnet.
		The manganese(IV) oxide is the second most strongly attracted compound, and is paramagnetic.
	people.bu.edu /straub/courses/demomaster/manganesemag.html (648 words)

	READE Advanced Materials - Manganese Oxide Powder (MnO2) (Site not responding. Last check: 2007-09-11)
		Manganese dioxide (MnO2), Manganese oxide (MnO), Manganese (IV) oxide,
		manganese oxide, mno, manganese dioxide, mn02, manganese (IV) oxide, manganese oxide, mno, manganese dioxide, mn02, manganese (IV) oxide
		MnO2 is used as a colorant and decolorizer in glass, white ware, enamels and pottery.
	www.reade.com /en/Products/Oxides/Manganese-Oxide-Powder-(MnO2).html (184 words)

	AUFBAU1 [METALS: MANGANESE]
		Manganese(IV) oxide and potassium manganate(VII) are both used extensively as oxidizing agents in laboratories and in industry.
		This oxidizing agent is often preferred to chlorine, for two reasons: one, it does not affect the taste of the water; and two, the manganese(IV) oxide produced acts as a coagulating agent for suspended particles.
		____ _______________________________________________________________________ [2] (b) Catalase, an iron-containing enzyme with a structure very similar to haemoglobin, and manganese(IV) oxide both speed up the decomposition of hydrogen peroxide; though the enzyme is considerably more effective than the inorganic catalyst, as might be expected.
	www.wissensdrang.com /auf1mn.htm (705 words)

	[No title]
		Explain, in terms of collision theory, the significance of adding the solid manganese(IV) oxide to the system.
		Explain why the reaction rate is increased so much by the addition of the powdered form of solid manganese(IV) oxide.
		Rewrite the chemical equation including the added manganese(IV) oxide in the appropriate place.
	www.cdli.ca /~brice/chem/courses/pasqz/ps3200k2.doc (302 words)

	Periodic Table Elements
		When the oven cooled, a small amount of grayish manganese was produced.
		These chunks which vary from a few millimeters to a few meters in diameter, consist mainly of manganese and iron oxides.
		manganese (IV) oxide, MnO2, in dry cell and alkaline batteries, permanganic acid, HMnO4, which is as strong as perchloric acid.
	www.mlms.logan.k12.ut.us /~mlowe/Mn.html (283 words)

	Granite Countertops and Vanity Tops at All Granite And Marble Corp
		Home › Countertops › Encyclopedia › Manganese oxide ›
		Manganese(IV) oxide is the chemical compound MnO2, more usually called manganese dioxide.
		This flish or brown solid occurs naturally as the mineral pyrolusite, which is the main ore of manganese.
	www.marble.com /countertops/encyclopedia/22/manganese,oxide.html (524 words)

	Paramagnetism: Oxidation States of Manganese
		Manganese(III) oxide, with 4 unpaired electrons per Mn atom, is more strongly attracted to a magnet than is manganese(IV) oxide, with only 3 unpaired electrons per Mn atom.
		Manganese (III) oxide is paramagnetic with 4 unpaired electrons.
		Manganese(IV) oxide is less paramagnetic, with only 3 unpaired electrons.
	jce.divched.org /JCESoft/CCA/CCA2/MAIN/PARAOMN/CD2R1.HTM (206 words)

	Manganese - Wikipedia, the free encyclopedia
		It is also added to gasoline in order to reduce engine knocking.
		Manganese is used to decolorize glass (removing the greenish tinge that presence of iron produces) and, in higher concentration, make violet-colored glass.
		Potassium permanganate, also called Condy's crystals, is a commonly used laboratory reagent because of its oxidizing properties and finds use as a topical medicine (for example, in the treatment of fish diseases).
	en.wikipedia.org /wiki/Manganese (1346 words)

	manganese
		I have shown the original solution as very pale pink (the palest I can produce!), but in fact it is virtually colourless.
		The pale brown precipitate is oxidised to darker brown manganese(III) oxide in contact with oxygen from the air.
		This is manganese(IV) oxide - and is produced when the manganate(VII) ions react with the water.
	www.chemguide.co.uk /inorganic/transition/manganese.html (1049 words)

	Theoretical problems. English.
		Calculate the mass part of this acid in the solution when 0.5 moles of element X oxide are treated with 100 ml of water.
		In these conditions, iron(III) hydroxide and manganese(IV) oxide are precipitated from the solution.
		During the reaction, manganese(IV) oxide is formed from the permanganate.
	www.liis.lv /chem/43olimp/uzd_eng.htm (2566 words)

	The Open Door Web Site : Chemistry : The Properties of Gases : The Preparation of Gases in the Laboratory
		Adding hydrogen peroxide solution to manganese IV oxide powder.
		Heating concentrated hydrochloric acid with manganese IV oxide.
		The ammonia gas is dried by passing it through calcium oxide granules before it is collected by upward delivery.
	www.saburchill.com /chemistry/chapters/chap048.html (146 words)

	Re: Manganese (IV) oxide is used in the decomposition of hydrogen peroxide.
		There are a variety of ways in which catalysts can accomplish this.
		Metal ions, like the manganese in manganese oxide, are strong Lewis acids.
		Lewis acids are atoms that draw electron density toward them.
	www.madsci.org /posts/archives/jan2000/948494558.Ch.r.html (312 words)

	Isolation and Characterization of Metal-Reducing Thermoanaerobacter Strains from Deep Subsurface Environments of the ...
		Biogenic iron mineralization accompanying the dissimilatory reduction of hydrous ferric oxide by a groundwater bacterium.
		in the presence and absence of manganese(IV) oxide.
		Physiochemical, mineralogical and isotopic characterization of magnetite-rich iron oxides formed by thermophilic iron reducing bacteria.
	aem.asm.org /cgi/content/full/68/12/6013 (4739 words)

	action of catalase and MnO2 on hydrogen peroxide
		What type of substance is in the liver which could bring about the reaction in tube A? How do you account for your observation in tube B? From your observation on D, what can you conclude about manganese (IV) oxide?
		Therefore the enzyme is heat stable or labile?
		Therefore manganese oxide is the opposite of catalase
	www.physicsforums.com /showthread.php?t=34735 (639 words)

	Enthalpy Change for a Chemical Reaction Name ___________________________________
		The common disinfectant, 3% hydrogen peroxide solution (3 g of peroxide per 100 g of solution), will be used with manganese(IV) oxide as a catalyst for the decomposition.
		Using a scoop, put an amount of manganese(IV) oxide, about the size of 2 peas, into the coffee cup calorimeter.
		Measure 45-50 mL of 3% hydrogen peroxide and record the volume on the data table.
	www.tvgreen.com /chapt8/documents/PEROXLAB.html (753 words)

	2.7
		This is true of tin, for example, where Sn and Sn are known.
		SnO in the preceding list should more correctly be named tin(II) oxide.
		, tin(IV) oxide, which is a different compound.
	www.mhhe.com /physsci/chemistry/chang7/ssg/chap02_7sg.html (833 words)

	alkenes and potassium manganate(VII) (permanganate)
		Under alkaline conditions, the manganate(VII) ions are first reduced to green manganate(VI) ions.
		and then further to dark brown solid manganese(IV) oxide (manganese dioxide).
		This last reaction is also the one you would get if the reaction was done under neutral conditions.
	www.chemguide.co.uk /organicprops/alkenes/kmno4.html (736 words)

	NASAexplores 5-8 Lesson: Speed It Up With A Catalyst (Student Sheets)
		Draw a diagram and/or write any observations of this decomposition in the space below.
		Carefully, add a small amount of manganese (IV) oxide to one of the test tubes.
		Draw a diagram and/or write any observations of what happened when the manganese (IV) oxide was added to the hydrogen peroxide.
	www.nasaexplores.com /show_58_student_sh.php?id=04051085409 (133 words)

	Chemistry : Periodic Table : manganese : compound data [manganese (IV) oxide]
		Chemistry: WebElements Periodic Table: Professional Edition: Manganese: compound data [manganese (IV) oxide]
		For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular.
		Copyright 1993-2006 Mark Winter [The University of Sheffield and WebElements Ltd, UK].
	www.webelements.com /webelements/compounds/text/Mn/Mn1O2-1313139.html (319 words)

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