Balancing Chemical Equations

Balancing Chemical Equations

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Why do we need to Balance Chemical

Equations?

Why do we need to Balance Chemical

Equations?•The Law of Conservation of

Mass

• The # of atoms must stay the same on both sides of the equation

• The amount of mass is always the same.

•The Law of Conservation of Mass

• The # of atoms must stay the same on both sides of the equation

• The amount of mass is always the same.

How do we Balance Chemical Equations?How do we Balance Chemical Equations?

•We use coefficients to balance equations.

•Example- 2H2 +O2---> 2H2O

• total atoms= 4-H 2-O ---> 4-H 2-O

•We use coefficients to balance equations.

•Example- 2H2 +O2---> 2H2O

• total atoms= 4-H 2-O ---> 4-H 2-O

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