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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Balance the equation: Na + Cl₂ → NaCl.
💡 Hint: Count the number of each type of atom on each side of the equation.
Question 2
Easy
Balance the equation: C + O₂ → CO₂.
💡 Hint: Only one of each type is required for this reaction.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the first step in balancing a chemical equation?
- Start with coefficients
- Write the unbalanced equation
- Check atom balance
💡 Hint: Think about what a balanced equation starts with.
Question 2
True or False: The coefficients in a balanced equation can be in fractions.
- True
- False
💡 Hint: Consider what units we use for counting atoms.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Balance the reaction of aluminum and oxygen to produce aluminum oxide: Al + O₂ → Al₂O₃.
💡 Hint: Start by balancing aluminum first before oxygen.
Question 2
Balance the combustion of hexane (C₆H₁₄) in oxygen: C₆H₁₄ + O₂ → CO₂ + H₂O.
💡 Hint: Remember to balance carbon and hydrogen atoms first, then oxygen.
Challenge and get performance evaluation