객관식
Which of the following statements most accurately describes the body's water balance?
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3. Water
Properties of Water- The Universal Solvent
객관식
Which of the following properties of water explains its ability to dissolve many substances and act as a universal solvent?
A
Water has a low surface tension.
B
Water has a high specific heat capacity.
C
Water expands upon freezing.
D
Water is a polar molecule with partial positive and negative charges.
검증된 단계별 안내1
Understand the concept of polarity: Water is a polar molecule, meaning it has an uneven distribution of electrons. The oxygen atom in water is more electronegative, pulling shared electrons closer to itself, resulting in a partial negative charge on oxygen and partial positive charges on the hydrogen atoms.
Recognize how polarity contributes to water's solvent properties: The partial positive and negative charges allow water molecules to interact with other polar molecules and ions, effectively surrounding and separating them.
Learn about hydrogen bonding: Water's polarity enables it to form hydrogen bonds with other molecules, which helps break apart solutes and keeps them dissolved in solution.
Relate this to the term 'universal solvent': Water's ability to dissolve a wide variety of substances is due to its polarity and hydrogen bonding, making it an excellent solvent for biological and chemical processes.
Connect the explanation to the correct answer: The property of water being a polar molecule with partial positive and negative charges directly explains its ability to dissolve many substances and act as a universal solvent.
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