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Honors Chemistry A > Unit 1: Introduction to Chemistry—Vocabulary > Flashcards

Unit 1: Introduction to Chemistry—Vocabulary Flashcards

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1
Q

Chemical Properties Definition

A

Characteristics used to describe how a substance changes or does not change its composition when interacting with other substances

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2
Q

Chemical Change Definition

A

Change that involves a change in composition; also called a chemical reaction

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3
Q

Composition Definition

A

The chemical makeup of a substance

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4
Q

Extensive Properties Definition

A

Characteristics that depend on the amount of substance present

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5
Q

Intensive Properties Definition

A

Characteristics that do not depend on the amount of substance present

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6
Q

Matter Definition

A

Anything that has mass and volume

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7
Q

Physical Change Definition

A

Change that does not involve a change in composition

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8
Q

Physical Properties Definition

A

Characteristics used to describe matter that are not associated with changing its chemical makeup

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9
Q

Properties Definition

A

Characteristics that are used to describe a substance

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10
Q

Compound Definition

A

A pure substance composed of two or more elements

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11
Q

Element Definition

A

A pure substance that cannot be changed into simpler substances through chemical or physical means

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12
Q

Heterogeneous Mixture Definition

A

A mixture in which the properties and composition varies from one sample to another

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13
Q

Homogeneous Mixture Definition

A

A mixture that has uniform properties and composition in each sample

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14
Q

Mixture Definition

A

A physical combination of two or more substances

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15
Q

Molecule Definition

A

A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction

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16
Q

Proton Definition

A

A positively charged particle that makes up the nucleus of an atom

17
Q

Pure Substance Definition

A

Matter that has a definite composition

Honors Chemistry A (3 decks)

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