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School > Chem Test 2 > Flashcards

Chem Test 2 Flashcards

1
Q

Beakers

A

Hold solids or liquid that do not release gas when reacted or splatter when heated or stirred. There are five different sizes.

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2
Q

Flask

A

Hold solids or liquids that release, gas or splatter when reacted. has a skinny neck.

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3
Q

Graduated cylinder

A

Used to measure the volume of liquids

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4
Q

Test tube

A

Tubes that hold things for science

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5
Q

Test tube rack

A

Holds five test tubes in a row

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6
Q

Test tube brush

A

Used to clean test tubes

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7
Q

Rubber stoppers

A

Used to contain spillage or close graduated cylinders, and test moves

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8
Q

Spot plates

A

Used for small scale reactions at one time

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9
Q

Watch glass

A

Used to hold a small amount of substance

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10
Q

Glass plates

A

Give surface for semi micro experiments

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11
Q

Scopula

A

Used to pick up powdered materials, stirring, mixing and blending

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12
Q

Glass stirring rod

A

To mix ionic solids

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13
Q

Forceps

A

Used to pick up small things

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14
Q

Beaker tongs

A

To move beakers containing liquids

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15
Q

Evaporating dish

A

Used for the heating of stable, solid compounds and elements

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16
Q

Crucible tongs

A

Used to pick up hot objects not beakers

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17
Q

Bunsen burner

A

Used to heat liquids and solids

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18
Q

Strikers

A

Used to light Bunsen burner

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19
Q

Ring stands

A

Provide a stable elevated platform for reactions

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20
Q

Utility clamps

A

Used to secure things to rings stand

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21
Q

Fire screen pad

A

A wire mat for placing hot items. Can be used on iron ring to heat glass wear

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22
Q

How to get Celsius from Fahrenheit

A

C=5/9(F-32)

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23
Q

how to get Fahrenheit from Celsius

A

F = 9/5C +32

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24
Q

How to get kelvin from Celsius

A

K = C + 273

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25
Q

How many units of natural matter are there? (Elements)

A

There are 92 natural units of matter (elements)

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26
Q

What is the simplest form of matter?

A

Element

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27
Q

What contains two or more elements chemically combined?

A

Compound

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28
Q

A physical blend of two or more components

A

Mixture

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29
Q

What occurs when the look changes but not the chemical make up

A

Physical change

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30
Q

What occurs when a substance changes into something new?

A

Chemical change

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31
Q

What is the law of conservation?

A

During any chemical reaction, the mass of the product is always equal to the mass of the reactants

32
Q

What is the law conservation of mass?

A

A fundamental principle of classical physics that matter cannot be created nor destroyed in an isolated system

33
Q

What is an atom?

A

An Adam can no longer be divided or reduced

34
Q

What is an atom?

A

An Adam can no longer be divided or reduced

35
Q

What is Dalton’s theory

A

All matters composed of atoms. all atoms cannot be subdivided, created, or destroyed in ordinary chemical reactions

36
Q

Who used cathode ray tubes

A

JJ Thomson

37
Q

What is Thomas atomic model?

A

Thomas believe that electrons were like plums embedded in a positively charged pudding so it’s called the plum putting model

38
Q

Who coined the term nucleus?

A

Rutherford

39
Q

Who discovered neutrons

A

Chadwick

40
Q

What are the two regions that are composed of an atom?

A

The nucleus and the the electron cloud

41
Q

What is a particle also called

A

Quark

42
Q

What is the mass number?

A

Number of protons and neutrons in the nucleus

43
Q

What is an atomic number?

A

Number of protons in nucleus

44
Q

What is the symbol for hydrogen?

A

H

45
Q

What is the symbol for lithium?

A

Li

46
Q

What is the symbol for sodium?

A

Na

47
Q

What is the symbol for potassium?

A

K

48
Q

What is the symbol for rubidium?

A

Rb

49
Q

What is the symbol for cesium

A

Cs

50
Q

What is the symbol for francium?

A

Fr

51
Q

What is the symbol for beryllium?

A

Be

52
Q

What is the symbol for magnesium?

A

Mg

53
Q

What is the symbol for calcium?

A

Ca

54
Q

What is the symbol for strontium?

A

Sr

55
Q

What is the symbol for barium?

A

Ba

56
Q

What is the symbol for titanium?

A

Ti

57
Q

What is the symbol for iron?

A

Fe

58
Q

What is the symbol for nickel?

A

Ni

59
Q

What is the symbol for copper?

A

Cu

60
Q

What is the symbol for silver?

A

Ag

61
Q

What is the symbol for gold?

A

Au

62
Q

What is the symbol for zinc?

A

Zn

63
Q

What is the symbol for mercury?

A

Hg

64
Q

What is the symbol for boron?

A

B

65
Q

What is the symbol for aluminum?

A

Al

66
Q

What is the symbol for carbon?

A

C

67
Q

What is the symbol for nitrogen?

A

N

68
Q

What is the symbol for phosphorus?

A

P

69
Q

What is the symbol for oxygen?

A

O

70
Q

What is the symbol for sulfur?

A

S

71
Q

What is the symbol for chlorine?

A

Cl

72
Q

What is the symbol for iodine?

A

I

73
Q

What is the symbol for helium?

A

He

74
Q

What is the symbol for neon?

A

Ne

75
Q

What is the symbol for uranium?

A

U

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