Multiple Choice
Which of the following best describes the outcome of mixing NaOH (aq) and CaBr2 (aq) based on solubility rules?
6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which type of materials are more likely to dissolve in water due to their interaction with water molecules?
A
Hydrophilic
B
Hydrophobic
C
Metallic
D
Nonpolar
Verified step by step guidance1
Understand the nature of water: Water is a polar solvent, meaning it has a partial positive charge on one side and a partial negative charge on the other, due to its bent molecular shape and the electronegativity difference between hydrogen and oxygen.
Identify the types of interactions: Polar molecules or ions can interact with water through dipole-dipole interactions or hydrogen bonding, which are strong interactions that facilitate dissolution.
Define hydrophilic materials: Hydrophilic substances are those that have an affinity for water. They are typically polar or ionic, allowing them to interact favorably with water molecules.
Contrast with hydrophobic materials: Hydrophobic substances do not interact well with water. They are usually nonpolar, meaning they lack the charge separation needed to interact with the polar water molecules.
Conclude which materials dissolve: Based on the interaction types, hydrophilic materials are more likely to dissolve in water due to their ability to form favorable interactions with water molecules.
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