Answers2003350 Chemistry HONORS Sem 1 - MarezIntermolecular Forces

Intermolecular Forces — Unit test Answers

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The incomplete table below shows selected characteristics of different types of bonds.RowBondCausePhysical property of compound1?Electron sharing among many atomsDuctile2?Electron sharing between two atomsBrittle3??BrittleWhat type of bond is most likely being represented in row 1?

A
ion-dipole
B
ionic
C
metallic
D
covalent
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Which statement best describes London dispersion forces?

A
repulsive intramolecular forces
B
attractive intramolecular forces
C
attractive intermolecular forces
D
repulsive intermolecular forces
23

Which statement best describes the properties of metals?

A
They are shiny and bend without breaking.
B
They are dull and are good electrical insulators.
C
They conduct electricity well and are brittle.
D
They can be flattened and do not conduct heat well.
24

Which reason best explains why metals are shiny?

A
because their valence electrons reflect light
B
because their valence electrons absorb light
C
because their valence electrons oscillate between bands
D
because their valence electrons move to higher energy levels
25

Which statement best explains why water has a higher boiling point than ethane?

A
Ethane molecules are smaller than water and can move faster.
B
Water molecules need relatively less heat energy to move.
C
Water molecules form hydrogen bonds, which cannot be broken by heating water.
D
Ethane molecules have no hydrogen bonds and need less energy to separate.

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