Physical Changes in Chemistry

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Which of the following is an example of a physical change?

Rusting of iron

Burning wood to produce ash

Digesting food in the stomach

Mixing salt and water to form a solution (correct)

What is NOT a characteristic of physical changes?

Reversible using physical means

Can separate mixtures into their component compounds

Changes the chemical composition (correct)

Involves a change in physical properties

What property is NOT considered a physical property?

Density

Color

Melting

Burning (correct)

Which process involves a physical change?

Boiling water Signup and view all the answers

What is an example of a physical change involving rearrangement of atoms?

Formation of crystals Signup and view all the answers

Which process can result in the formation of different crystal types in metals?

Physical hammering and rolling Signup and view all the answers

How are mixtures of substances that are not soluble usually separated?

Physical sieving or settlement Signup and view all the answers

What is the process of separating individual metals from an alloy that may require chemical processing?

Alloying Signup and view all the answers

Which type of change cannot readily be undone by physical means?

Making an alloy Signup and view all the answers

What process can be used to separate most solutions of salts and some compounds such as sugars?

Evaporation Signup and view all the answers

Physical Changes in Chemistry

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Questions and Answers

Which of the following is an example of a physical change?

What is NOT a characteristic of physical changes?

What property is NOT considered a physical property?

Which process involves a physical change?

What is an example of a physical change involving rearrangement of atoms?

Which process can result in the formation of different crystal types in metals?

How are mixtures of substances that are not soluble usually separated?

What is the process of separating individual metals from an alloy that may require chemical processing?

Which type of change cannot readily be undone by physical means?

What process can be used to separate most solutions of salts and some compounds such as sugars?

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