객관식
Which of the following is the primary step that allows water to enter the groundwater system?
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3. Water
Introduction to Water
객관식
The emergent properties of water (cohesion, high heat capacity, good solvent) come from the fact that water is ______ and ______ hydrogen bond.
A
Polar, can.
B
Polar, cannot.
C
Non-polar, can.
D
Non-polar, cannot.
검증된 단계별 안내1
Understand that water is a molecule composed of two hydrogen atoms and one oxygen atom, forming H₂O.
Recognize that water is a polar molecule. This means that there is an uneven distribution of electron density, resulting in a partial negative charge near the oxygen atom and a partial positive charge near the hydrogen atoms.
Identify that the polarity of water allows it to form hydrogen bonds. A hydrogen bond is a weak bond between a hydrogen atom in one molecule and an electronegative atom (like oxygen) in another molecule.
Consider how these hydrogen bonds contribute to water's emergent properties: cohesion (water molecules sticking together), high heat capacity (water's ability to absorb heat without a significant temperature change), and being a good solvent (ability to dissolve many substances).
Conclude that the correct answer is 'Polar, can' because water's polarity and ability to form hydrogen bonds are responsible for its unique properties.
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