QuestionAugust 8, 2025

Select all that apply Which describe polar covalent compounds? Their molecules are not attracted to each other. Groups of molecules make a crystal structure. They dissolve in water. They have high melting and boiling points.

Select all that apply Which describe polar covalent compounds? Their molecules are not attracted to each other. Groups of molecules make a crystal structure. They dissolve in water. They have high melting and boiling points.
Select all that apply Which describe polar covalent compounds? Their molecules are not attracted to each other. Groups of molecules make a crystal structure. They dissolve in water. They have high melting and boiling points.

Solution
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Answer

They dissolve in water. Explanation 1. Identify characteristics of polar covalent compounds Polar covalent compounds have molecules with partial positive and negative charges, leading to attractions between them. They typically dissolve in water due to their polarity. 2. Evaluate each statement - "Their molecules are not attracted to each other": Incorrect, as polar covalent molecules do attract each other. - "Groups of molecules make a crystal structure": Incorrect, as this is characteristic of ionic compounds. - "They dissolve in water": Correct, as polar covalent compounds often dissolve in water. - "They have high melting and boiling points": Incorrect, as polar covalent compounds generally have lower melting and boiling points compared to ionic compounds.

Explanation

1. Identify characteristics of polar covalent compounds<br /> Polar covalent compounds have molecules with partial positive and negative charges, leading to attractions between them. They typically dissolve in water due to their polarity.<br /><br />2. Evaluate each statement<br /> - "Their molecules are not attracted to each other": Incorrect, as polar covalent molecules do attract each other.<br /> - "Groups of molecules make a crystal structure": Incorrect, as this is characteristic of ionic compounds.<br /> - "They dissolve in water": Correct, as polar covalent compounds often dissolve in water.<br /> - "They have high melting and boiling points": Incorrect, as polar covalent compounds generally have lower melting and boiling points compared to ionic compounds.
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