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Questions and Answers
What is the primary process by which liquid water transforms into vapor at any temperature?
What is the primary process by which liquid water transforms into vapor at any temperature?
- Condensation
- Transpiration
- Evaporation (correct)
- Vaporization
Which of the following correctly describes the angle formed by the covalent bonds in a water molecule?
Which of the following correctly describes the angle formed by the covalent bonds in a water molecule?
- 120$
- 180$
- 90$
- 104.5$ (correct)
Which factor does NOT influence the decomposition of rocks as a result of acid rain?
Which factor does NOT influence the decomposition of rocks as a result of acid rain?
- Temperature changes
- Soil pH (correct)
- Water streaming intensity
- Plant root growth
In the chemical structure of water, what is the ratio of hydrogen atoms to oxygen atoms?
In the chemical structure of water, what is the ratio of hydrogen atoms to oxygen atoms?
What happens to water vapor when it interacts with compounds in the air?
What happens to water vapor when it interacts with compounds in the air?
Flashcards
Vaporization
Vaporization
The process of converting liquid water to a gaseous state at the boiling point.
Evaporation
Evaporation
The process of converting liquid water to a gaseous state at any temperature.
Condensation
Condensation
The process of converting gaseous water to a liquid state.
Transpiration
Transpiration
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Water (H2O)
Water (H2O)
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Study Notes
Vaporization Process
- A process converting substance from liquid to gas at the boiling point
- Includes evaporation (conversion at any temperature)
- Includes condensation (gas to liquid, opposite of evaporation)
- Includes transpiration (water loss by plants as vapor)
Water Cycle Effects
- Water cycle is a system that physically, chemically, and biologically changes the Earth's surface
- Water vapor can react with air compounds, creating acids that break down rocks
- Geologic structures are formed through fragmentation and breaking of rocks by various factors (physical like wind, water, temperature; chemical like acid rains; biological like plant roots)
Water Composition
- Water is composed of hydrogen and oxygen
- Volumetric percentage of hydrogen = 66.67%
- Volumetric percentage of oxygen = 33.33%
- Ratio of hydrogen to oxygen (by volume) = 2:1
- Mass percentage of hydrogen = 11.11%
- Mass percentage of oxygen = 88.89%
- Ratio of hydrogen mass to oxygen mass = 1:4
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