6.2 - Environmental Science
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Practice Questions
Test your understanding with targeted questions
What is the mole concept in chemistry?
💡 Hint: Think about how chemists count atoms or molecules.
What does it mean to balance a chemical equation?
💡 Hint: Remember the law of conservation of mass!
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the value of Avogadro’s number?
💡 Hint: Remember that it helps to count atoms and molecules.
True or False: A balanced chemical equation has the same number of each atom on both sides.
💡 Hint: Consider why balancing is necessary in chemistry.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A chemist has 10 grams of nitrogen and 5 grams of hydrogen. Given that the balanced reaction is : N2 + 3 H2 → 2 NH3. Determine the limiting reactant and calculate the maximum yield of ammonia produced.
💡 Hint: Balance the equation first and convert all quantities to moles.
If you mixed 3 moles of A with 5 moles of B in the reaction 2A + 3B → 4C. What is the theoretical yield of product C and what is the limiting reactant?
💡 Hint: Check which reactant makes the least amount of product.
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