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chemia
chrom
chrom
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własciwości fiz. Chromu
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srebrzysty metal
najczęstsze stopnie utlenienia
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II, II, VI
Cr+HCL w warunkach beztlenowych daje...
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CrCl2 i H2
Cr+HCl+O2 daje...
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CrCl3+H2+H2O
charakter, kolor i czy reaguje z wodą CrO
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Zasadowy, czarny, nie reaguje z wodą
charakter, kolor i czy reaguje z wodą CrO2
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amfoteryczny, zielony nie reaguje z wodą
charakter, kolor, stan skupienia CrO3
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Kwasowy, czerwono-pomarańczowy ciało stałe
charakter i kolor Cr(OH)3
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amfoteryczny zielony
barwa CrO42-
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żółta
barwa Cr2O72-
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pomarańczowa
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chemia
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