Chemical Reactions Exam Prep
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What you'll study, topic by topic
Chemical reactions and equations
Sample questions with model answers
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Discuss the importance of balancing chemical equations.
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Balancing chemical equations ensures the law of conservation of mass is upheld and accurately represents the reaction.
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Write and balance the chemical equation for the combustion of propane ($C_3H_8$).
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The balanced equation is $C_3H_8 + 5O_2 ightarrow 3CO_2 + 4H_2O$.
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Explain the steps to balance a chemical equation.
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Identify reactants and products, count atoms, adjust coefficients to balance, and verify the balance.
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Describe a decomposition reaction with an example.
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A decomposition reaction involves a single compound breaking down into two or more products, e.g., $AB ightarrow A + B$.
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