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English, 29.08.2019 22:30, beck1013

Which element does pyrite have in common with magnetite

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Chemistry, 24.06.2019 17:40, thomasdianne

Iron pyrite, fes2, is known as fool's gold because it is a shiny yellow solid which is similar in appearance to gold. iron pyrite is an ionic compound. gold is a metallic element.- iron pyrite, fes2, contains positive and negative ions. the positive ion is fe2+.1) what is the formula of the negative ion?

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Chemistry, 14.09.2019 08:20, kalestalker10

(c) density computation exercise [15 marks] hematite and magnetite are two main fe-oxides, and are composed of fe and o. hematite has hexagonal close packing (hcp) and magnetite has "cubic diamond type" packing, i.e. combining cubic close packed (ccp) and face centred cubic (fcc). (see example used in class). hematite crystallises in the hexagonal system with cell parameters: a b 5.038 a c 13.772a, and angles a b 90°; and y 1200. magnetite is cubic with a b -c 8.397 a, a b y 90 given the atomic masses of fe and o as 55.845 g/mol, and 15.999 g/mol, respectively, calculate the density of hematite and magnetite hints: use the following relationships for your density calculations if mat is the atomic mass in the periodic table (given above for each element) then the mass of the atom (ma) in kg is: (1) mat (103 kg/g)ma/na where na is avogadro's number na=6.023x1023 atom/mol and density is: (2) p (number of atoms per unit volume) x (mass per atom)

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Chemistry, 26.09.2019 00:00, quesorules7101

Magnetite and hematite are both ores for which element?

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Chemistry, 08.11.2019 22:31, studyoverload

2. which minerals contain the two most abundant elements by mass in earths a. fluorite and calcite b. magnetite and pyrite c. amphibole and quartz d. galena and sulfur

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