Respuesta :
The coefficient of the equation (i) CH₄ + O₂ → CO₂ + H₂O are 2, 2 the coefficient of equation (ii) CaCl₂ + AgNO₃ → Ca(NO₃)₂ + AgCl are 2, 2 and the coefficient of equation (iii) C₂H₆O + O₂ → CO₂ + H₂O are 3, 2, 3.
What is Balanced Chemical Equation ?
The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.
Here the given equations are
(i) CH₄ + O₂ → CO₂ + H₂O
(ii) CaCl₂ + AgNO₃ → Ca(NO₃)₂ + AgCl
(iii) C₂H₆O + O₂ → CO₂ + H₂O
Now balance the equation (i)
CH₄ + O₂ → CO₂ + H₂O
Reactant side Product Side
C = 1 C = 1
H = 4 H = 2
O = 2 O = 3
In the reactant side there are 4 H atoms and in product side there are 2 H atoms are present. So multiply by 2 in the product side to balance the H atoms.
CH₄ + O₂ → CO₂ + 2H₂O
Reactant side Product Side
C = 1 C = 1
H = 4 H = 4
O = 2 O = 4
In the reactant side there are 2 O atoms and in product side there are 4 H atoms are present. So multiply by 2 in the reactant side to balance the O atoms.
CH₄ + 2O₂ → CO₂ + 2H₂O
Reactant side Product Side
C = 1 C = 1
H = 4 H = 4
O = 4 O = 4
Here we can see that the equation is balanced. The coefficient are 2, 2.
Now balance the equation (ii)
CaCl₂ + AgNO₃ → Ca(NO₃)₂ + AgCl
Reactant side Product Side
Ca = 1 Ca = 1
Cl = 2 Cl = 1
Ag = 1 Ag = 1
N = 1 N = 2
O = 3 O = 6
In the reactant side there are 2 Cl atoms and in product side there is 1 Cl atom is present. So multiply by 2 in the product side to balance the Cl atoms.
CaCl₂ + AgNO₃ → Ca(NO₃)₂ + 2AgCl
Reactant side Product Side
Ca = 1 Ca = 1
Cl = 2 Cl = 2
Ag = 1 Ag = 2
N = 1 N = 2
O = 3 O = 6
In the reactant side there is 1 Ag atom and in product side there are 2 Ag atoms are present. So multiply by 2 in the reactant side to balance the Ag atoms.
CaCl₂ + 2AgNO₃ → Ca(NO₃)₂ + 2AgCl
Reactant side Product Side
Ca = 1 Ca = 1
Cl = 2 Cl = 2
Ag = 2 Ag = 2
N = 2 N = 2
O = 6 O = 6
Here we can see that the equation is balanced. The coefficient are 2, 2.
Now balance the equation (iii)
C₂H₆O + O₂ → CO₂ + H₂O
Reactant side Product Side
C = 2 C = 1
H = 6 H = 2
O = 3 O = 3
In the reactant side there are 2 C atoms and in product side there is 1 C atom is present. So multiply by 2 in the product side to balance the C atoms.
C₂H₆O + O₂ → 2CO₂ + H₂O
Reactant side Product Side
C = 2 C = 2
H = 6 H = 2
O = 3 O = 5
In the reactant side there are 6 H atoms and in product side there are 2 H atoms are present. So multiply by 3 in the product side to balance the H atoms.
C₂H₆O + O₂ → 2CO₂ + 3H₂O
Reactant side Product Side
C = 2 C = 2
H = 6 H = 6
O = 3 O = 7
In the reactant side there are 3 O atoms and in product side there are 7 H atoms are present. So multiply by 3 in the reactant side to balance the O atoms.
C₂H₆O + 3O₂ → 2CO₂ + 3H₂O
Reactant side Product Side
C = 2 C = 2
H = 6 H = 6
O = 7 O = 7
Here we can see that the equation is balanced. The coefficient are 3, 2, 3.
Thus, we can say that the coefficient of the equation (i) CH₄ + O₂ → CO₂ + H₂O are 2, 2 the coefficient of (ii) CaCl₂ + AgNO₃ → Ca(NO₃)₂ + AgCl are 2, 2 and the coefficient of equation (iii) C₂H₆O + O₂ → CO₂ + H₂O are 3, 2, 3.
Learn more about the Balanced Chemical Equation Here: brainly.com/question/26694427
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