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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
How many hydrogen atoms are in H₂O?
💡 Hint: Look at the subscript next to H.
Question 2
Easy
What does a lack of subscript after an element indicate?
💡 Hint: Consider the meaning of subscripts.
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 subscript 2 in H₂O represent?
- 2 hydrogen atoms
- 2 oxygen atoms
- 1 molecule of water
💡 Hint: Focus on the subscript next to H.
Question 2
True or False: In C₆H₁₂O₆, the number of oxygen atoms is 6.
- True
- False
💡 Hint: Recheck the subscript for the oxygen atom.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Count the total number of atoms in Fe₂(SO₄)₃.
💡 Hint: Don't forget to consider the subscripts for sulfate, which has 4 oxygen atoms.
Question 2
If you have 3 moles of (NH₄)₂SO₄, how many nitrogen atoms are there?
💡 Hint: Use the number of nitrogen atoms per formula unit as a starting point.
Challenge and get performance evaluation