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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the chemical symbol for Oxygen?
💡 Hint: Think of the element's name.
Question 2
Easy
What is the valency of Chlorine?
💡 Hint: Consider how many bonds it typically forms.
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 does atomicity refer to?
- The number of protons
- The number of atoms in a molecule
- The number of electrons
💡 Hint: Look at the definition given in the section.
Question 2
True or False: The symbol for Sodium is Na.
- True
- False
💡 Hint: Think about the elements' origins.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the reactants: 2Na + Cl₂ → ?, predict the product and balance the equation.
💡 Hint: Identify the product formed and maintain the balance.
Question 2
Calculate the number of atoms in 5 molecules of H₂O.
💡 Hint: Multiply the number of molecules by the number of atoms in each.
Challenge and get performance evaluation