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chemistry > chemistry test 1-2 > Flashcards

chemistry test 1-2 Flashcards

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1
Q

science

A

body of knowledge

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2
Q

chemistry

A

center of science, deals with structure and compsition

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3
Q

organic

A

compounds with carbon(drugs, flavors, plastics)

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4
Q

inorganic

A

anything other than carbon(acids, bases, salts, metals)

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5
Q

physical

A

interactions and transformations of chemicals

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6
Q

analytical

A

“chemist”, identifies composition

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7
Q

biochemistry

A

chemistry within living things(proteins, carbs, lipids, nucleic acids)

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8
Q

theoretical

A

math and laws, research and development

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9
Q

electro chemistry

A

charge and electron potential (batteries, current, corrosion)

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10
Q

environmental

A

impact natural resources(Ozone, pollution, toxic waste)

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11
Q

nuclear

A

atomic changes from a reaction(fission, fusion, radioactive decay)

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12
Q

concerns of chemistry

A

chemical production causes pollution, by-products, side-effects, inherent dangers; science knowledge is at best incomplete, long term effects are always a concern

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13
Q

EPA

A

Environmental Protection Agency- to control the pollution of the environment and preserve natural resources.

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14
Q

FDA

A

Food and Drug Administration- testing and approval of consumer products to be put on the market

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15
Q

OSHA

A

Occupational Safety and Hazard Administration- monitoring and labeling of chemicals in the workplace (chemical safety)

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16
Q

ACS

A

American Chemical Society- provides current chemical literature and educates professionals in chemical fields.

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17
Q

Classifying matter is based on…

A

complexity

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18
Q

element

A

pure substance that cannot be further decomposed.

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19
Q

mixture

A

only physically united, can be anything that’s not pure, has no formula

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20
Q

compound

A

can be divided into 2 or more simpler components, exact formula

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21
Q

filtering

A

separation of an insoluble ingredient (salt and pepper)

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22
Q

sorting

A

selecting of an ingredient from various samples(mining)

23
Q

magnetism

A

removal of materials based on magnetic property(iron ore)

24
Q

distillation

A

parts collected based on boiling points(water purification)

25
Q

fractional distillation

A

separation of a mixture based on component parts

26
Q

extraction

A

dissolving out an ingredient by solubility(flavors from oils, stains)

27
Q

gravitation

A

separating by density(gold panning, wheat harvesting)

28
Q

periodic divisions

A

natural elements(1-92)(found in environment)
lab elements(93-118)(artificial, lab discovery)

29
Q

vertical organization on the periodic table is divided by….

A

groups/families

30
Q

horizontal organization on the periodic table is divided by….

A

periods/rows

31
Q

metals are…

A

-defined by luster
-ductility
-malleability
-good reflector of heat and light
-good conductor of heat and electricity
-divided by “staircase”(except hydrogen)

32
Q

nonmetals are…

A

-poor conductors
-dull in color
-brittle
-many are gasses

33
Q

metalloids are…..

A

elements with characteristics of both metals and non metals

34
Q

noble gasses

A

nonreactive elements of the final group

35
Q

mass

A

amount of matter

36
Q

inertia

A

resistance that matter offers to change position or motion

37
Q

atom

A

smallest unit of an element

38
Q

element

A

pure substance, only 1 atom

39
Q

compound

A

2 or more elements chemically bonded

40
Q

substance

A

pure form of matter

41
Q

plasma

A

high temperature state where atoms lose electrons

42
Q

phase changes are all…

A

physical changes

43
Q

evaporation occurs

A

only on the surface of the liquid

44
Q

sublimation

A

solid to gas

45
Q

vaporization

A

a vapor is produced(any phase)

46
Q

physical property

A

characteristic determined without changing the identity of the material

47
Q

chemical property

A

characteristic defined because of a reaction (oxidation, corrosion, flammability, acid reacting, water reacting)

48
Q

SI units are…

A

a system of 10

49
Q

base units

A

can be measured directly

50
Q

derived units

A

combining units, calculations

51
Q

D=

A

M/V

52
Q

V=

A

M/D

53
Q

M=

A

(D)(V)

chemistry (3 decks)

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