1.

Q. 6. Balance the given equations.a) Fet 02->Fee Oz​

Answer»

Explanation:

Step 1: Tally the number of ATOMS based on subscript.

F

e

+

O

2

→

F

e

2

O

3

(unbalanced)

left side: Fe = 1; O = 2

right side: Fe = 2; O = 3

Step 2: Start balancing the simple molecules first, in this case the

O

2

F

e

+

3

O

2

→

F

e

2

O

3

left side: Fe = 1; O = 2 x

3

= 6

right side: Fe = 2; O = 3

Since there are now 6

O

atoms on the left, there must also be 6

O

atoms on the right. Notice that the right hand is one big molecule so whatever COEFFICIENT you would use to balance the

O

atoms, you would also need to apply to the bonded

F

e

atom.

F

e

+

3

O

2

→

2

F

e

2

O

3

left side: Fe = 1; O = 2 x 3 = 6

right side: Fe = 2 x

2

= 4; O = 3 x

2

= 6

Step 3: Now balance the rest of the equation.

4

F

e

+

3

O

2

→

2

F

e

2

O

3

left side: Fe = 1 x

4

= 4; O = 2 x 3 = 6

right side: Fe = 2 x 2 = 4; O = 3 x 2 = 6

The equation is now balanced.


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