redoxhints

redoxhints - 2-C O 2 Redox reactions involve the transfer...

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Redox Reaction Prediction Important Oxidizers Formed in reaction MnO 4- (acid solution) Mn(II) MnO 4- (basic solution) MnO 2 MnO 2 (acid solution) Mn(II) Cr 2 O 7 -2 (acid) Cr(III) CrO 4 -2 C r ( I I I ) HNO 3 , c o n c N O 2 HNO 3 , d i l u t e N O H 2 SO 4 , hot conc SO 2 Metallic Ions Metallous Ions Free Halogens Halide ions HClO 4 C l - Na 2 O 2 O H - H 2 O 2 O 2 Important Reducers Formed in Reaction Halide Ions Halogens F r e e M e t a l s M e t a l I o n s Metalous Ions Metallic ions Nitrite Ions Nitrate Ions S u l f i t e I o n s S O 4 2- Free Halogens (dil, basic sol) Hypohalite ions Free Halogens (conc, basic sol) Halate ions C 2 O 4
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Unformatted text preview: 2-C O 2 Redox reactions involve the transfer of electrons. The oxidation numbers of at least two elements must change. Single replacement, some combination and some decomposition reactions are redox reactions. To predict the products of a redox reaction, look at the reagents given to see if there is both an oxidizing agent and a reducing agent. When a problem mentions an acidic or basic solution, it is probably a redox reaction....
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