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a C u ( s ) ​ + b H N O 3 ( a q ) ​ → c C u ( N O 3 ​ ) 2 ( a q ) ​ + d N O ( g ) ​ + e H 2 ​ O ( l ) ​ Koefisien a, b, c, d, dan e pada reaksi di atas secara berturut – turut adalah …

Koefisien a, b, c, d, dan e pada reaksi di atas secara berturut – turut adalah …

  1. 1, 1, 2, 3, dan 2

  2. 3, 8, 3, 2 dan 4

  3. 3, 8, 3, 2 dan 1

  4. 2, 3, 8, 1, dan 1

  5. 2, 3, 2, 3, dan 3

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R. RGFREELANCETIGASATU

Master Teacher

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Reaksi ion: Cu (s) + NO 3 – (aq) → Cu 2+ (aq) + NO (g)

Reaksi ion:

Cu(s) + NO3(aq)         →       Cu2+(aq) + NO(g)

 

Reduksi colon space space N O 3 minus space plus space 4 H plus space plus space 3 e minus space rightwards arrow space N O space plus space 2 H 2 O space space space space left parenthesis cross times space 2 right parenthesis Oksidasi colon space space C u space rightwards arrow space C u 2 plus space plus space 2 e minus space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space left parenthesis cross times space 3 right parenthesis

 

2 N O subscript 3 minus space plus space 8 H to the power of plus space plus horizontal strike space 6 e end strike to the power of minus space rightwards arrow space 2 N O space plus space 4 H subscript 2 O space space bottom enclose 3 C u space rightwards arrow space 3 C u squared plus space plus horizontal strike space 6 e end strike to the power of minus space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space minus space space space end enclose space space 2 N O subscript 3 to the power of minus space plus space 8 H to the power of plus space plus space 3 C u rightwards arrow space 2 N O space plus space 4 H subscript 2 O space plus space 3 C u to the power of 2 plus end exponent

 

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Perhatikan reaksi redoks berikut ini, a NO 2 - + b Al → c NH 3 + d AlO 2 - Berapakah nilai a, b, c, dan d?

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