5.7.1 - Balanced Equation
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Practice Questions
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What are reactants in a chemical equation?
💡 Hint: They come before the arrow in the equation.
Define a balanced equation.
💡 Hint: Think about how we keep count.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a balanced equation?
💡 Hint: Think about what happens in a reaction.
True or False: A chemical equation must always be balanced to represent a reaction.
💡 Hint: Consider the physical law we studied earlier.
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Challenge Problems
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Balance the combustion reaction of ethanol (C₂H₅OH): C₂H₅OH + O₂ → CO₂ + H₂O.
💡 Hint: Start balancing carbon, then hydrogen, then oxygen.
Balance the reaction of calcium with oxygen to form calcium oxide: Ca + O₂ → CaO.
💡 Hint: Remember that oxygen is diatomic.
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