polarity for chemistry

Here are flashcards for your material:

Flashcard 1

Q: What is an example of a polar molecule?

A: Water (H₂O)

Flashcard 2

Q: In chemistry, what does “like dissolves like” mean?

A: Polar molecules dissolve in polar solvents, and nonpolar molecules dissolve in nonpolar solvents.

Flashcard 3

Q: Give three examples of molecules that dissolve in water.

A: Salt (NaCl), Sugar (C₆H₁₂O₆), and Ammonia (NH₃)

Flashcard 4

Q: Circle the molecule that does NOT dissolve in water.

A: Image 5

Flashcard 5

Q: What property of water allows an object denser than water to float?

A: Surface tension

Flashcard 6

Q: What property of water causes a meniscus to form in a graduated cylinder?

A: Adhesion

Flashcard 7

Q: Hydrogen bonding only occurs when hydrogen is bonded to which three elements?

A: Oxygen (O), Nitrogen (N), and Fluorine (F)

Flashcard 8

Q: What are van der Waals forces?

A: Electrostatic interactions between opposite charges in molecules.

Flashcard 9

Q: What is solubility?

A: The ability of a substance to dissolve in another.

Flashcard 10

Q: What is a dipole?

A: A molecule with regions of partial positive and negative charges.

Flashcard 11

Q: What is capillary action?

A: Water moving against gravity due to cohesion and adhesion.

Flashcard 12

Q: What is density?

A: Mass per unit volume.

Flashcard 13

Q: What is adhesion?

A: The attraction between different substances.

Flashcard 14

Q: What is a phase transition?

A: The change of a substance from one state to another.

Flashcard 15

Q: What is cohesion?

A: The attraction between molecules of the same substance.

Flashcard 16

Q: What is surface tension?

A: The tightness of water’s surface due to hydrogen bonding.

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