Questions and Answers
What is the chemical formula of water?
H2O
Which property makes water denser than ice?
Expansion upon freezing
What property of water allows it to dissolve many substances?
Polarity
Which factor contributes to water having a high specific heat capacity?
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What property of water allows it to form droplets on surfaces?
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Study Notes
Properties of Water
- The chemical formula of water is H2O.
- Water is denser than ice due to its hydrogen bonding property, where molecules are attracted to each other, resulting in a higher density.
- Water's polarity property allows it to dissolve many substances, as it can form hydrogen bonds with ions and polar molecules.
- The high specific heat capacity of water is contributed by its high heat of vaporization, requiring a lot of energy to change its state from liquid to gas.
- The cohesion-tension property of water allows it to form droplets on surfaces, due to the attraction between molecules at the surface, causing them to behave as if they have an "elastic skin".
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