4 - Chemical Equations
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Practice Questions
Test your understanding with targeted questions
What is a chemical equation?
💡 Hint: Think about how equations represent numbers.
List the reactants in the equation: 2H₂ + O₂ → 2H₂O.
💡 Hint: Look for the substances on the left side.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does a chemical equation represent?
💡 Hint: Focus on what changes in chemical composition.
True or False: Balancing a chemical equation is necessary to show the conservation of mass.
💡 Hint: Consider what happens to atoms during reactions.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Balance the combustion reaction of ethane (C₂H₆): C₂H₆ + O₂ → CO₂ + H₂O and explain your balancing process.
💡 Hint: Start with the most complex molecule first and work your way through.
Given the reaction: Na + Cl₂ → NaCl, discuss how you would balance it and the rationale behind it.
💡 Hint: Consider the total number of atoms of each element.
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