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Answered

How do we balance a chemical equation?
O adding elements as necessary
changing subscripts
erasing elements as necessary
placing coefficients

Answer :

Answer: placing coefficients

Explanation: In a balanced chemical equation, the total number of atoms of each element present is the same on both sides of the equation. Stoichiometric coefficients are the coefficients required to balance a chemical equation. These are important because they relate the amounts of reactants used and products formed.

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