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Pertanyaan

Berikut ini adalah beberapa proses pengolahan unsur :

(1) Goldschmit;

(2) Wohler;

(3) Haber-Bosch;

(4) Frasch; dan

(5) Dow.

Proses pengolahan magnesium ditunjukkan oleh nomor...

  1. 5

  2. 4

  3. 3

  4. 2

  5. 1

D. Ayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

Pembahasan

Magnesium diperoleh dari air laut menurut proses Dow melalui tahap-tahap

Mencampurkan air laut dengan (CaO) sehingga magnesium mengendap

C a O space left parenthesis s right parenthesis space plus space H 2 O space left parenthesis l right parenthesis space rightwards arrow space C a to the power of 2 plus end exponent space left parenthesis a q right parenthesis space plus space 2 O H to the power of minus space left parenthesis a q right parenthesis  M g to the power of 2 plus end exponent space left parenthesis a q right parenthesis space plus space 2 O H to the power of minus space left parenthesis a q right parenthesis space rightwards arrow space M g left parenthesis O H right parenthesis subscript 2 space left parenthesis s right parenthesis  M g to the power of 2 plus end exponent left parenthesis a q right parenthesis space plus space H subscript 2 O left parenthesis l right parenthesis space plus space C a O left parenthesis s space right parenthesis rightwards arrow space M g left parenthesis O H right parenthesis subscript 2 left parenthesis s right parenthesis space plus space C a to the power of 2 plus end exponent left parenthesis a q right parenthesis  M g left parenthesis O H right parenthesis 2 space y a n g space t e r b e n t u k space d i s a r i n g comma space d i c u c i space d a n space d i r e a k s i k a n space d e n g a n space l a r u tan space H C l space p e k a t  M g left parenthesis O H right parenthesis 2 left parenthesis s right parenthesis space plus space 2 H C l left parenthesis a q right parenthesis space rightwards arrow space M g C l 2 left parenthesis a q right parenthesis space plus space 2 H 2 O left parenthesis l right parenthesis  L a r u tan space M g C l subscript 2 space end subscript y a n g space d i p e r o l e h space d i u a p k a n space s e h i n g g a space d i p e r o l e h space K r i s t a l space M g C l subscript 2  K r i s t a l space M g C l subscript 2 space d i e l e k t r o l i s i s space t e r h a d a p space l e l e h a n space M g C l subscript 2 space y a n g space d i c a m p u r space C a C l subscript 2  M g C l subscript 2 space left parenthesis l right parenthesis space rightwards arrow space M g to the power of 2 plus end exponent space left parenthesis l right parenthesis space plus space 2 C l to the power of minus space left parenthesis l right parenthesis  K a t o d a space colon space M g to the power of 2 plus end exponent left parenthesis l right parenthesis space plus space 2 e space rightwards arrow space M g left parenthesis l right parenthesis  A n o d a space space colon space 2 C l minus space left parenthesis l right parenthesis space rightwards arrow space C l subscript 2 left parenthesis g right parenthesis space plus space 2 e  H a s i l space space space space colon space M g to the power of 2 plus end exponent space left parenthesis l right parenthesis space plus space 2 C l to the power of – left parenthesis l right parenthesis space rightwards arrow space M g left parenthesis l right parenthesis space plus space C l subscript 2 left parenthesis g right parenthesis

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Seorang siswa yang lain mencoba kegiatan berikut. Ia menjepit logam magnesium dengan tang besi, lalu dibakar dengan pembakar spiritus. Timbul nyala yang menyilaukan mata. Setelah itu abunya ditampung ...

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