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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does H₂O represent?
💡 Hint: Think about the common substances you know.
Question 2
Easy
How many atoms of oxygen are in carbon dioxide?
💡 Hint: Look closely at the subscript in the formula.
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 the formula H₂O represent?
- Water
- Hydrogen Peroxide
- Oxygen
💡 Hint: Think of the liquid we drink every day.
Question 2
Valency refers to the number of atoms in a molecule.
- True
- False
💡 Hint: Remember what valency indicates about an atom's behavior.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the compounds Na₂S and CaCl₂, determine the number of individual ions present in each compound.
💡 Hint: Consider the subscript in each compound for ion count.
Question 2
Construct the formula for a compound formed between aluminum (Al) and the sulfate radical (SO₄²⁻).
💡 Hint: Use the criss-cross method to balance the ions.
Challenge and get performance evaluation