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Menyetarakan persamaan reaksi?

gunakan cara persamaan matematika ya

Al+ O² -> Al2O3

Makasih

^^

Update:

saya butuh caranya secara mendetail

Update 2:

tolong caranya secara terperinci supaya saya ngerti

3 Answers

Rating
  • Anonymous
    1 decade ago
    Favorite Answer

    Mencoba menjawab

    Misal menggunakan metode Abjad

    aAl + bO2 ---> cAl2O3

    Al : a = 2c ..........(1)

    O : 2b = 3c .......(2)

    misalkan a=1,

    persamaan (1) a=2c, jika a=1 maka c=1/2

    persamaan (2) 2b = 3c ----> 2b = 3(1/2) -----> 2b = 3/2 ------> b=3/4

    nilai a=1, b=3/4, dan c=1/2

    maka persamaannya menjadi:

    aAl + bO2 ----> cAl2O3

    Al + 3/4O2 ---> 1/2Al2O3 ---> agar diperoleh bilangan bukan berupa pecahan maka dikalikan penyebut terbesar, berarti semua reaksi dikalikan 4, menjadi :

    4Al + 3O2 ---> 2Al2O3

  • Anonymous
    1 decade ago

    Al + 3O2 -> Al2O3

  • Anonymous
    1 decade ago

    4Al + 3O2 -> 2Al2O3

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