Question 1

Which of the following best describes the arrangement of particles in an amorphous solid?

Accepted Answer

Particles are randomly arranged without any discernible pattern.

Question 2

Which type of solid is most likely to be soft, have a low melting point, and be a poor conductor of electricity?

Accepted Answer

Molecular solid

Question 3

A sample of glass is classified as which type of solid?

Accepted Answer

Amorphous solid

Question 4

Which of the following solids is held together primarily by metallic bonds?

Accepted Answer

Copper

Question 5

Which of the following best explains why ionic solids tend to have high melting points?

Accepted Answer

They are held together by strong electrostatic attractions between oppositely charged ions.

Question 6

Which of the following is an example of a covalent network solid?

Accepted Answer

Graphite

Question 7

A student is given a solid that is hard, does not conduct electricity, and melts at 1400$$^\circC. $$Which type of solid is this most likely to be?

Accepted Answer

Covalent network solid

Question 8

Which of the following best describes the bonding in a sample of steel?

Accepted Answer

Metallic bonding

Question 9

Which of the following solids is classified as a molecular solid?

Accepted Answer

CO$$_2 ($$dry ice)

Question 10

What is the major electrostatic force found within an ammonia (NH$$_3) $$molecule?

Accepted Answer

Covalent bond

Question 11

Which of the following best explains why metals are good conductors of electricity?

Accepted Answer

They contain delocalized electrons that can move freely.

Question 12

Which of the following is NOT a property of crystalline solids?

Accepted Answer

Random arrangement of particles

Question 13

A bronze alloy is best classified as which type of solid?

Accepted Answer

Metallic solid

Question 14

Which of the following statements about amorphous solids is TRUE?

Accepted Answer

They soften gradually over a range of temperatures.

Question 15

Which of the following is a property of molecular solids?

Accepted Answer

Soft texture

Question 16

Which of the following best describes the bonding in CaCO$$_3 ($$calcium carbonate)?

Accepted Answer

Ionic bonding

Question 17

Which of the following solids is most likely to be brittle and shatter when struck?

Accepted Answer

Ionic solid

Question 18

Which of the following is a key difference between crystalline and amorphous solids?

Accepted Answer

Crystalline solids have a highly ordered arrangement throughout.

Question 19

Which of the following best describes the structure of graphite?

Accepted Answer

Layers of atoms held together by weak forces

Question 20

A solid is found to be soft, has a low melting point, and does not conduct electricity. Which type of solid is it most likely to be?

Accepted Answer

Molecular solid

Classification and Properties of Solids: Crystalline vs Amorphous

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