Exam #1 Flashcards

1
Q

chemistry

A

the study of property of matter

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2
Q

matter

A

anything that has mass and takes up bits

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3
Q

atoms

A

the fundamental building blocks of matter

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4
Q

elements

A

the same to atoms, but cannot be broken down chemically

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5
Q

compound

A

a thing that is composed of two or more separate elements

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6
Q

physical properties

A

can measure matter

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7
Q

chemical properties

A

can only change matter

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8
Q

intensive properties

A

doesn’t matter how much you have

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9
Q

extensive properties

A

depends on how much you have

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10
Q

pure substance

A

all one thing

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11
Q

mixture

A

more than one thing

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12
Q

homogeneous

A

the same

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13
Q

heterogeneous

A

they’re different

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14
Q

decanting

A

sepearting 2 things

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15
Q

filtration

A

separating 2 things based on their size or state of matter

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16
Q

distillation

A

separating 2 things using a condensor

17
Q

potential energy

A

stored energy

18
Q

kinetic energy

A

energy that is in motion

19
Q

accuracy

A

the actual value

20
Q

precision

A

the repeated ability to be exact

21
Q

basic unit

A

unit your measure yourself

22
Q

derived unit

A

units that are calculated

23
Q

density

A

measure of compactness

24
Q

ions

A

atoms that have different numbers of protons and electrons

25
Q

valence electrons

A

are determined by the column the atoms are in

26
Q

cation

A

positively charged ions

27
Q

anion

A

negatively charged ions

28
Q

nuclear strong force

A

want to pull them all together (protons)

29
Q

protons

A

positive charge

30
Q

electrons

A

negative charge

31
Q

neutrons

A

no charge or neutral

32
Q

fission

A

separates things from being together

33
Q

fusion

A

forces 2 things together