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Types and Classifications of Matter

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Questions and Answers

Which of the following is NOT a physical change?

Burning wood (correct)

Freezing water into ice

Crushing a can

Melting butter

What is the difference between a pure substance and a mixture?

Pure substances are always solids, while mixtures can be solids, liquids, or gases.

Pure substances can be separated by physical means, while mixtures cannot.

Pure substances are always elements, while mixtures are always compounds.

Pure substances have a fixed composition, while mixtures can vary in their composition. (correct)

What is a chemical change?

A change that always releases heat or energy.

A change that alters the chemical composition of the substance leading to the formation of new substances. (correct)

A change that only alters the physical properties of the substance.

A change that is always reversible.

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

<p>The color of a flower (D)</p> Signup and view all the answers

Which of the following correctly describes the states of matter?

<p>Solids have a fixed shape and volume, liquids have a fixed volume but not shape, and gases have neither fixed shape nor fixed volume. (A)</p> Signup and view all the answers

Flashcards

Physical Change

A change that alters physical properties without changing chemical structure.

Chemical Change

A change that alters both physical properties and chemical structure.

States of Matter

The distinct forms that matter can take: solid, liquid, gas.

Properties of Matter

Characteristics that define matter, including physical and chemical properties.

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Classifications of Matter

Categories of matter: pure substances (elements and compounds) and mixtures.

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Study Notes

Types of Changes in Matter

Matter undergoes physical and chemical changes.
Physical changes alter physical properties, not chemical structure.
Chemical changes alter both physical and chemical structure.

States of Matter

Matter exists in solid, liquid, and gas states.

Properties of Matter

Matter possesses physical and chemical properties.

Classifications of Matter

Pure substances include elements and compounds.
Mixtures are also a classification of matter.

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Description

Explore the different types of changes in matter, including physical and chemical changes. Learn about the states of matter and their properties, as well as the classifications of pure substances and mixtures. This quiz covers essential concepts in understanding the nature of matter.