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Questions and Answers
What is the chemical formula of water?
What is the chemical formula of water?
- O2
- NaCl
- H2O (correct)
- CO2
Which property makes water denser than ice?
Which property makes water denser than ice?
- High freezing point
- Expansion upon freezing (correct)
- Low heat capacity
- Low boiling point
What property of water allows it to dissolve many substances?
What property of water allows it to dissolve many substances?
- Polarity (correct)
- Low surface tension
- High viscosity
- Non-polar nature
Which factor contributes to water having a high specific heat capacity?
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?
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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Description
Test your knowledge on various properties of water such as its chemical formula, density compared to ice, ability to dissolve substances, high specific heat capacity, and the formation of droplets on surfaces.
