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Understanding Solids: Properties and Composition

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Understanding Solids: Properties and Composition

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Questions and Answers

What is the repeating pattern formed by atoms in a crystal called?

Chain structure

Molecule

Crystal lattice (correct)

Atomic array

Which of the following substances is NOT mentioned in the text as an example of a crystal?

Diamond

Table salt

Polymers

Gold (correct)

What is the chemical name for table salt?

Potassium nitrate

Magnesium sulfate

Sodium chloride (correct)

Calcium carbonate

Why do diamonds and graphite look different even though they are both made of carbon atoms?

Diamonds have a specific crystal structure, while graphite does not. Signup and view all the answers

Why do polymers tend to be crystals according to the text?

Because they have a molecular structure with a large number of similar units bonded in a chain. Signup and view all the answers

Which of the following statements about solids is FALSE?

Solids do not have tightly packed particles. Signup and view all the answers

What is a compound in the context of solids?

A pure chemical substance made of two or more different chemical elements. Signup and view all the answers

What distinguishes crystals from mixtures in terms of atomic arrangement?

Crystals have a specific and predictable atomic pattern. Signup and view all the answers

What characterizes a homogeneous mixture that can make up a solid?

Even spread of components within the mixture. Signup and view all the answers

Which term describes a solid that contains a mix of iron and aluminum atoms?

Heterogeneous mixture Signup and view all the answers