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4 cards from this section. Quick, good the night before a test.
What is the chemical formula for water?
Think about how many hydrogen and oxygen atoms are in a molecule of water.
What elements make up water?
Recall the components of the H₂O molecule.
What is the chemical formula of water?
Remember the common notation for water.
Water is what percentage of hydrogen by mass?
Think about how the components relate to the total mass.
If the mass of a water molecule is approximately 18 atomic mass units (amu), calculate the mass contributions of hydrogen and oxygen.
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.
Think about the interactions water has with different substances.
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