Multiple Choice
A solution in which water is the solvent is called a(n) _______________ solution.
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3. Water
Properties of Water- The Universal Solvent
Multiple Choice
Hydrophobic molecules:
A
Are polar covalent molecules.
B
Easily dissolve in water.
C
Are nonpolar water 'fearing' molecules.
D
Are nonpolar water 'loving' molecules.
Verified step by step guidance1
Understand the term 'hydrophobic': In biology, 'hydrophobic' refers to molecules that do not interact well with water. The term comes from 'hydro' meaning water and 'phobic' meaning fearing.
Identify the nature of hydrophobic molecules: Hydrophobic molecules are typically nonpolar. This means they do not have a charge distribution that allows them to interact with polar molecules like water.
Contrast with hydrophilic molecules: Hydrophilic molecules are polar and can form hydrogen bonds with water, making them 'water-loving'. Hydrophobic molecules lack this ability.
Consider the solubility in water: Since hydrophobic molecules are nonpolar, they do not dissolve easily in water, which is a polar solvent. This is due to the 'like dissolves like' principle, where polar solvents dissolve polar solutes and nonpolar solvents dissolve nonpolar solutes.
Conclude the correct description: Based on the understanding that hydrophobic molecules are nonpolar and do not dissolve in water, the correct description is that they are 'nonpolar water-fearing molecules'.
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