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CHEM 131 > chapter 1: notes and definitions > Flashcards

chapter 1: notes and definitions Flashcards

basics of chem, atoms, molecules, and compounds, periodic table of elements, characteristics of matter

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1
Q

macroscopic domain

A

the realm of everyday things that are large enough to be sensed directly by human sight or touch

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2
Q

microscopic domain

A
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3
Q

symbolic domain

A

contains the specialized language used to represent components of the macroscopic and microscopic domains

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4
Q

matter

A

anything occupying space and having mass

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5
Q

atom

A

smallest part of an element that is still an element

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6
Q

molecule

A

two or more atoms joined by chemical bonds and acting as a unit

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7
Q

four states of matter

A

solid, liquid, gas, plasma

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8
Q

solid

A

rigid with fixed volume and shape

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9
Q

liquid

A

fixed volume that assumes shape of container

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10
Q

gas

A

no fixed volume or shape, fills space of container

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11
Q

extensive property

A

property that depends on the amount of matter

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12
Q

intensive property

A

property that is independent of the amount of matter

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13
Q

mass

A

measure of the amount of matter in an object

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14
Q

weight

A

the force that gravity exerts on an object

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15
Q

element

A

pure substance that cannot be broken down into simpler substances by chemical changes

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16
Q

compounds

A

pure substances comprised of two or more elements

17
Q

mixture

A

composed of two or more types of matter that can be present in varying amounts and can be separated by physical changes

18
Q

physical property

A

characteristic of matter that is not associated with a change in chemical composition

19
Q

physical change

A

change in the form of a substance, not its composition

20
Q

chemical property

A

ability to change from one type of matter into another

21
Q

chemical change

A

a given substance becomes a new substance becomes a new substance or substances with diff. properties and composition

22
Q

diatomic elements

A

hydrogen, nitrogen oxygen, fluoride, chlorine, bromine, iodine

23
Q

polyatomic elements

A

phosphorus, sulfur, selenium

CHEM 131 (7 decks)

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