Ionic Crystals & Metals (College Board AP® Chemistry)

Exam Questions

12 mins9 questions
1a2 marks

Compound

Melting Point (°C)

LiI

449

KI

686

LiF

845

NaF

993

A student learns that ionic compounds have significant covalent character when a cation has a polarizing effect on a large As a result, the student hypothesizes that salts composed of small cations and large anions should have relatively low melting points.

Select two compounds from the table and explain how the data support the student’s

1b2 marks

Identify a compound from the table that can be dissolved in water to produce a basic Write the net ionic equation for the reaction that occurs to cause the solution to be basic.

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