Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the molecular formula of water?
π‘ Hint: Count the hydrogens and oxygens.
Question 2
Easy
What shape does the water molecule have?
π‘ Hint: Think about the arrangement of hydrogen atoms around oxygen.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the bond angle in a water molecule?
- 90 degrees
- 104.5 degrees
- 120 degrees
π‘ Hint: Recall the unique structure of the water molecule.
Question 2
True or False: Water is a nonpolar molecule.
- True
- False
π‘ Hint: Think about how the electrons are shared in the molecule.
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Challenge Problems
Push your limits with challenges.
Question 1
Calculate the energy required to raise the temperature of 1 liter of water by 10 degrees Celsius. The specific heat of water is 4.18 J/gΒ°C.
π‘ Hint: Remember the equation for specific heat.
Question 2
Draw the Lewis structure of water and indicate the bond dipoles. Explain how this relates to its properties.
π‘ Hint: Focus on the differences in electronegativity and the shape.
Challenge and get performance evaluation