Balancing Equations Practice

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 equation?

Back

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

Front

What are products in a chemical equation?

Back

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

Front

What does a coefficient represent in a chemical equation?

Back

A coefficient is a number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.

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What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides.

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What is the difference between a subscript and a coefficient?

Back

A subscript indicates the number of atoms of an element in a molecule, while a coefficient indicates the number of molecules or moles of a substance.

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What does it mean if a chemical equation is already balanced?

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If a chemical equation is already balanced, it means that the number of atoms of each element is equal on both sides of the equation without needing any adjustments.

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What is the significance of balancing chemical equations?

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Balancing chemical equations is important because it reflects the conservation of mass and allows chemists to predict the amounts of reactants and products involved in a 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.