Question

2. What are the coefficients of the correctly balanced equation?
?Fe2O3 + ?C0— ?Fe+ ?CO2
(a) 0, 2, 2,3
(b) 1, 3, 2,3
(c) 1, 2, 2, 2
(d) 2, 6, 4.3​

Answer 1

$\large{\sf What \: is \: Balanced \: Equation}$

Equation in which number of reactant is equal to number of product is Refered to as Balanced Equation

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Here in our question :-

${\sf Fe_2O_3+CO→Fe+CO_2 }$

Let ,

Coefficient of $\sf{Fe_2O_3}$=x

$\sf{CO}$ = y

$\sf{Fe}$ = a

$\sf{CO_2}$ = b

Now We know ,

Coefficient of reactant is equal to coefficient of product.

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For the given reaction

${\sf \green{x}Fe_2O_3+\green{y}CO→\green{a}Fe+\green{b}CO_2 }$

${\sf Fe_2O_3+\red{3}CO→\red{2}Fe+\red{3}CO_2}$

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Hence ,

Option (2) is correct

[ 1 , 3 , 2 , 3 ]

Answer 2

Answer:

The correct answer is b. 1,3,2,3.

Explanation:

?Fe2O3 + ?C0— ?Fe+ ?CO2

• Reactant sides of Fe- 2 and Product side of Fe- 1.
• Reactant sides of O- 4 and Product side of O- 2.
• Reactant sides of C- 1 and Product side of C- 1.

For balancing it out, add 2 on the product side i.e. right-hand side of Fe. Step- 2 add 2 on the product side of O. Step-3 balance the equation with 3 on each side of Carbon.

The coefficients would be 1, 3, 2, 3

Fe2O3 + 3C0— 2Fe+ 3CO2

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