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#menggunakan penjelasan dan cara
#makasih
Penjelasan:
Penyetaraan reaksi
menggunakan cara aljabar
Nomor 1 :
C(s) + O2(g) => CO(g)
(a)C + (b)O2 => (c)CO
..
C : a = c
O : 2b = c
misal c = 1
a = c | 2b = c
a = 1 | 2b = 1
b = ½
a = 1, b = ½, c = 1 ....kalikan 2
a = 2, b = 1, c = 2
persamaan reaksi :
2C(s) + O2(g) => CO(g)
Nomor 2 :
Al(s) + O2(g) => Al2O2(g)
(a)Al + (b)O2 => (c)Al2O2
..
Al : a = 2c
O : 2b = 2c
misal c = 1
a = 2c | 2b = 2c
a = 2 | b = 1
a = 2, b = 1, c = 1
Persamaan reaksi :
2Al + O2 => Al2O2
Nomor 3 :
C2H5 + O2 => CO2 + H2O
(a)C2H5 + (b)O2 => (c)CO2 + (d)H2O
...
C : 2a = c
H : 5a = 2d
O : 2b = 2c + d
Misal a = 1
2a = c
c = 2
..
5a = 2d
5 = 2d
d = 5/2
..
2b = 2c + 2d
2b = 2(2) + 2(5/2)
2b = 4 + 5
2b = 9
b = 9/4
a = 1, b = 9/4, c = 2, d = 5/2 ....kalikan 4
a = 4, b = 9, c = 8, d = 10
Persamaan reaksi :
4C2H5 + 9O2 => 8CO2 + 10H2O
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