tolong dijawab 1. lengkapi koefisien reaksi [a,b,c dan d] berikut ini: [a] Fe2O3 + [b] HCI => [c] FeCI3 + [d] H2O [a] C6H12O6 + [b] O2 => [c] CO2 + [d] H2O

reaksi setara
1). Fe2O3 + 6 HCl -> 2 FeCl3 + 3 H2O
koefisiennya
a = 1
b= 6
c= 2
d = 3

2). C6H12O6 + 6 O2 -> 6 CO2 + 6 H2O

koefisiennya
a = 1
b = 6
c= 6
d = 6

[a] Fe2O3 + [b] HCI => [c] FeCI3 + [d] H2O
Fe => 2a = c
Cl => b = 3c
O => 3a = d
H => b = 2d

misal a = 1
c = 2a = 2(1) = 2
d = 3a = 3(1) = 3
b = 2d = 2(3) = 6

Fe2O3 + 6 HCI => 2 FeCI3 + 3 H2O

[a] C6H12O6 + [b] O2 => [c] CO2 + [d] H2O
C => 6a = c
H => 12a = 2d <=> d = 6a
O => 6a + 2b = 2c + d

misal : a = 1
c = 6a = 6(1) = 6
d = 6a = 6(1) = 6

6a + 2b = 2c + d
6(1) + 2b = 2(6) + 6
b = 6

C6H12O6 + 6 O2 => 6 CO2 + 6 H2O