Perhatikan Reaksi inti berikut!   714​ N +24​ He →11​ H + X   511​ B +11​ H →611​ C + Y  36​ Li +Z →47​ Be + 01​ n  Maka X, Y, dan Z berturut - turut adalah ...

Pertanyaan

Perhatikan Reaksi inti berikut!
 

  1. space presubscript 7 presuperscript 14 N space plus space presubscript 2 presuperscript 4 He space rightwards arrow space presubscript 1 presuperscript 1 H space plus space X  
  2. space presubscript 5 presuperscript 11 B space plus space presubscript 1 presuperscript 1 H space rightwards arrow space presubscript 6 presuperscript 11 C space plus space Y 
  3. space presubscript 3 presuperscript 6 Li space plus Z space rightwards arrow space presubscript 4 presuperscript 7 Be space plus space space presubscript 0 presuperscript 1 n 


Maka X, Y, dan Z berturut - turut adalah ...
 

  1. space presubscript 9 presuperscript 18 O comma space space presubscript 1 presuperscript 1 H comma space space presubscript 1 presuperscript 2 Hspace space

  2. space presubscript 9 presuperscript 17 O comma space space presubscript 1 presuperscript 2 H comma space space presubscript 0 presuperscript 1 nspace space

  3. space presubscript 8 presuperscript 17 O comma space space presubscript 0 presuperscript 1 n comma space space presubscript 1 presuperscript 2 Hspace space

  4. space presubscript 9 presuperscript 17 O comma space space presubscript 0 presuperscript 1 n comma space space presubscript 1 presuperscript 2 Hspace space

  5. space presubscript 8 presuperscript 17 O comma space space presubscript 1 presuperscript 2 H comma space space presubscript negative sign 1 end presubscript presuperscript 0 espace space

Y. Maghfirah

Master Teacher

Jawaban terverifikasi

Pembahasan

Untuk mencari unsur yang belum diketahui pada persamaan reaksi diatas maka kita bisa menggunakan hukum kekekalan nomor massa (A) dan nomor atom (z) sebagai berikut: 

  • space presubscript 7 presuperscript 14 straight N space plus space presubscript 2 presuperscript 4 He space rightwards arrow space presubscript 1 presuperscript 1 straight H space plus space X presubscript z presuperscript A straight A space equals space 14 space plus space 4 space minus space 1 space equals space 17 straight Z space equals space 7 space plus space 2 space minus space 1 space equals space 8 maka comma space space space presubscript straight Z presuperscript straight A straight X space equals space space presubscript 8 presuperscript 17 straight O 
     
  • space presubscript 5 presuperscript 11 straight B space plus space presubscript 1 presuperscript 1 straight H space rightwards arrow space presubscript 6 presuperscript 11 straight C space plus space Y presubscript z presuperscript A straight A space equals space 11 space plus space 1 space minus space 11 space equals 1 straight Z space equals space 5 space plus space 1 space minus space 6 space equals space 0 maka comma space space space presubscript straight Z presuperscript straight A straight Y space equals space space presubscript 0 presuperscript 1 straight n 
     
  • space presubscript 3 presuperscript 6 Li space plus Z presubscript z presuperscript A space rightwards arrow space presubscript 4 presuperscript 7 Be space plus space space presubscript 0 presuperscript 1 straight n 6 space plus space straight A space equals space 7 space plus space 1 space rightwards arrow space straight A space equals space 8 space minus space 6 space equals space 2 3 space plus thin space straight Z space equals space 4 space plus space 0 space rightwards arrow space straight Z space equals space 4 space minus space 3 space equals space 1 maka comma space space space presubscript straight Z presuperscript straight A straight Z space equals space space presubscript 1 presuperscript 2 straight H space

Jadi, jawaban yang tepat ialah C.
 

2rb+

4.1 (6 rating)

Andri Wibowo

Jawaban tidak sesuai Makasih ❤️

Pertanyaan serupa

Reaksi inti berikut ini akan lengkap jika inti X adalah ....

86

0.0

Jawaban terverifikasi

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