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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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