Balancing Chemical Equations

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What is a chemical equation?

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A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products involved.

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NGSS.MS-PS1-5

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What are reactants in a chemical equation?

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

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What are products in a chemical equation?

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Products are the substances formed as a result of a chemical reaction, found on the right side of the 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 to indicate how many molecules or moles of that substance are involved in the reaction.

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What is a subscript in a chemical formula?

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A subscript is a small number written after an element symbol that indicates the number of atoms of that element in a molecule.

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What does the arrow in a chemical equation represent?

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The arrow in a chemical equation represents the direction of the reaction, indicating that reactants are transformed into products.

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What is the Law of Conservation of Mass?

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The Law of Conservation of Mass states that in a closed system, matter cannot be created or destroyed in a chemical reaction.

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How do you balance a chemical equation?

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To balance a chemical equation, adjust the coefficients of the reactants and products to ensure the same number of each type of atom on both sides.

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What is the difference between a balanced and unbalanced chemical equation?

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A balanced chemical equation has equal numbers of each type of atom on both sides, while an unbalanced equation does not.

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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 for accurate stoichiometric calculations.

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