Balance chemical equations

Front

What is a balanced chemical equation?

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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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How do you determine the number of atoms in a compound?

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To find the number of atoms in a compound, multiply the subscript of each element by the coefficient in front of the compound.

Front

What are reactants in a chemical reaction?

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Reactants are the substances that undergo a chemical change in a reaction.

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What are products in a chemical reaction?

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Products are the substances that are formed as a result of a chemical reaction.

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What does it mean to balance a chemical equation?

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Balancing a chemical equation means adjusting the coefficients in front of the reactants and products to ensure that the number of atoms for each element is the same on both sides.

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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.

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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 to the right of an element symbol that indicates the number of atoms of that element in a molecule.

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How many hydrogen atoms are in the compound H2O?

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There are 2 hydrogen atoms in the compound H2O.

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What happens to atoms during a chemical reaction?

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During a chemical reaction, atoms get rearranged to form new substances.