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What is a chemical reaction?

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A process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.

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What are reactants in a chemical equation?

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The substances that undergo a chemical change, found on the left side of a chemical equation.

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What are products in a chemical equation?

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

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What does it mean for a chemical equation to be balanced?

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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.

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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 and compare them.

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What is the law of conservation of mass?

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In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

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What is a coefficient in a chemical equation?

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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 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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What is the difference between a balanced and unbalanced equation?

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

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What is an example of a balanced chemical equation?

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@@2H_2 + O_2 ightarrow 2H_2O@@ is balanced because there are 4 hydrogen atoms and 2 oxygen atoms on both sides.