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Page 1: C05 02 Balance Eqn 001

Balancing equation

This presentation will help you to learn how to balance

chemical equation easily.

Page 2: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Page 3: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

You are asked to balance the chemical equation above.

Page 4: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

This equation is too crowded.

Page 5: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

This equation is too crowded.

No space to fill in the

coeficient.

Page 6: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Give space between substances to fill in the

coefficient.

Page 7: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

NaOH + H2S → Na2S + H2O

Give space between substances to fill in the

coefficient.

Page 8: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Page 9: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Put in boxes to fill up coefficients.

Page 10: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Put in boxes to fill up coefficients.

Page 11: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Put in boxes to fill up coefficients.

Page 12: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Put in boxes to fill up coefficients.

Page 13: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Put in boxes to fill up coefficients.

Page 14: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Page 15: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Mark the same elements with the same color

Page 16: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Mark the same elements with the same color

Page 17: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Mark the same elements with the same color

Page 18: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Mark the same elements with the same color

Page 19: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Page 20: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Connect the coefficient with the same color.

Page 21: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Na =

Connect the coefficient with the same color.

Page 22: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Na =

O =

Page 23: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Na =

O =

S =

Page 24: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Na =

O =

S =

Adjust the coefficients to get same number of

elements onLHS (Left Hand Side)

and RHS(Right Hand Side).

Page 25: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O

Na =

O =

S =

Page 26: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O2 1

Na =2

O =

S =

Page 27: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O2 1

Na =2

O =1

S =

Page 28: C05 02 Balance Eqn 001

Balancing equation

NaOH + H2S → Na2S + H2O2 1 1 2

Na =2

O =2

S =1

Page 29: C05 02 Balance Eqn 001

Balancing equation

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