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Chem 106 > Chapter 1 > Flashcards

Chapter 1 Flashcards

1
Q

Dalton’s Atomic Theory

A
  1. all matter consists of individual particles called atoms. 2. All atoms of 1 element are identical (not true anymore). 3. different elements have different atoms. 4. Atoms are indestructible.
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2
Q

Who “Discovered” the Electron

A

Thompson + Millikan

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3
Q

Who “Discovered” the Proton

A

Rutherford

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4
Q

Who “Discovered” the Neutron

A

Chadwick + Rutherford

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5
Q

What are Laws

A

reliable observations

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6
Q

What are Theories

A

models of behavior (explanations)

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7
Q

Atomic Number

A

Number of Protons in an elements nucleus

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8
Q

Mass Number

A

Number of Protons and Neutrons in an elements nucleus

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9
Q

Isotopes

A

Variations of an element with same number of protons and electrons but different number of neutrons

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10
Q

Pure Substance

A
  1. Have one or many components. 2. Can only be separated by chemical means.
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11
Q

Mixtures

A
  1. Always has many components 2. Can be separated by physical means
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12
Q

Single Components

A

Elements

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13
Q

Multi-Components

A

Compounds made from various elements

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14
Q

Homogenous mixture

A

Even distribution throughout

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15
Q

Heterogenous mixture

A

Uneven distribution throughout

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16
Q

Physical Change

A

Does not change the composition of substance

17
Q

Chemical Change

A

Changes the composition of the substance

18
Q

Intensive Property

A

Independent of sample size

19
Q

Extensive Property

A

Dependent on sample size

20
Q

Physical Property

A

property that doesn’t change substance composition

21
Q

Chemical Property

A

Property of a substance that can
be observed when a substance undergoes change

22
Q

Value and symbol of Giga

A

G, 10 to the 9

23
Q

Value and symbol of Mega

A

M, 10 to the 6

24
Q

Value and symbol of kilo

A

k, 10 to the 3

25
Q

Value and symbol of hecto

A

h, 10 to the 2

26
Q

Value and symbol of deka

A

da, 10 to the 1

27
Q

Value and symbol of deci

A

d, 10 to the -1

28
Q

Value and symbol of milli

A

m 10 to the -3

29
Q

Value and symbol of centi

A

c, 10 to the -2

30
Q

Value and symbol of micro

A

µ, 10 to the -6

31
Q

Value and symbol of nano

A

n, 10 to the -9

32
Q

Value and symbol of pico

A

p, 10 the the -12

33
Q

Celsius to Kelvin

A

degrees Celsius +273.15

34
Q

Kelvin to Celsius

A

degrees Kelvin -273.15

35
Q

Accuracy

A

how close you are to actual target

36
Q

Precision

A

how reproducible (close) your actions are

37
Q

Density

A

mass/volume

38
Q

Specific Gravity

A

Density of solution/Density of water

Chem 106 (16 decks)

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