Balanced or Not Balanced ( Chemical Equations)

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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.

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What is a reactant in a chemical equation?

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A reactant is a substance that undergoes a chemical change in a reaction, found on the left side of a chemical equation.

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What is a product in a chemical equation?

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A product is a substance that is formed as a result of a chemical reaction, found on the right side of a chemical equation.

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What is a coefficient in a chemical equation?

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

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What is a chemical subscript?

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A chemical subscript is a number written below and to the right of a chemical symbol that indicates the number of atoms of that element in a molecule.

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How do you determine if a chemical equation is balanced?

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Count the number of atoms of each element on both sides of the equation. If they are equal, the equation is balanced.

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What does it mean if a chemical equation is not balanced?

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It means that the number of atoms of at least one element is different on the reactant side compared to the product side.

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What is the law of conservation of mass?

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The law of conservation of mass states that mass cannot be created or destroyed in a chemical reaction; it can only change forms.

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How many oxygen atoms are in the equation: 2H2 + O2 -> 2H2O?

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There are 2 oxygen atoms on the reactant side and 2 oxygen atoms on the product side, making the equation balanced.

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What is the purpose of balancing a chemical equation?

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The purpose 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.