Balancing Chemical Equations

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.

Front

What are reactants in a chemical reaction?

Back

Reactants are the substances that undergo a chemical change in a reaction, found on the left side of a chemical equation.

Front

What are products in a chemical reaction?

Back

Products are the substances formed as a result of a chemical reaction, found on the right side of a chemical equation.

Front

What does the Law of Conservation of Mass state?

Back

The Law of Conservation of Mass states that in a chemical reaction, the mass of the reactants must equal the mass of the products.

Front

Can subscripts in a chemical formula be changed when balancing equations?

Back

No, subscripts cannot be changed when balancing equations as they represent the number of atoms in a molecule.

Front

What is the purpose of balancing chemical equations?

Back

The purpose of balancing chemical equations is to ensure that the same number of each type of atom is present on both sides of the equation, reflecting the conservation of mass.

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What does it mean if a chemical equation is unbalanced?

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An unbalanced chemical equation has a different number of atoms of one or more elements on each side, indicating that mass is not conserved.

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How do you determine if a chemical equation is balanced?

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To determine if a chemical equation is balanced, count the number of atoms of each element on both sides of the equation and ensure they are equal.

Front

What is the significance of coefficients in a chemical equation?

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Coefficients are numbers placed before compounds in a chemical equation to indicate how many molecules or moles of that substance are involved in the reaction.

Front

What is an example of a balanced chemical equation?

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An example of a balanced chemical equation is: 2H₂ + O₂ → 2H₂O.