3.3 - Composition of Water
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Practice Questions
Test your understanding with targeted questions
What is the chemical formula for water?
💡 Hint: Think about how many hydrogen and oxygen atoms are in a molecule of water.
What elements make up water?
💡 Hint: Recall the components of the H₂O molecule.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the chemical formula of water?
💡 Hint: Remember the common notation for water.
Water is what percentage of hydrogen by mass?
💡 Hint: Think about how the components relate to the total mass.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
If the mass of a water molecule is approximately 18 atomic mass units (amu), calculate the mass contributions of hydrogen and oxygen.
💡 Hint: Use the percentages by mass to figure out contributions.
Discuss how the unique structure of water (its polar nature, hydrogen bonding) contributes to its property as a solvent in biochemical reactions.
💡 Hint: Think about the interactions water has with different substances.
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