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Vw11 Flashcards

0
Q

______
-extracting metals from their natural materials and preparing them for use
-minerals: rocks containing metals
-ore: the natural material from which the metal is extracted
-ex) BAUXITE (Al)
-

A

Metallurgy

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1
Q

The process of obtaining metals

  • ___________
    • pine oil in water
      - minerals sink to oil and float to the top
      - skim off the top

__________ (a chemical reaction)

 - heat up
 - melt according to density/melting point

_______

- melt in an electric furnace 
- oxygen into liquid metal 
     - reacts with and removes impurities 
 - cooled and shaped
A

Flotation
Reduction
Refine

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2
Q

___________

  • don’t exist unless they’re ions.
  • sodium vapor lamps : sodium atoms give off quanta in the yellow spectrum.

LITHIUM - Uses

- medicine 
- aircraft bodies

CHARCOAL and COKE : both have carbon
CHARCOAL = wood burned without oxygen
COKE = charcoal burned without oxygen

STEEL = Carbon and Iron
- the more carbon, the harder the steel

ALLOY: a mixture of 2 or more metals melted together
ANNEALING (softening) : heated up and cooled slowly

HARDENING

  • COOL WORKING/ ROLLING : pound steel into a new shape.
  • HEAT TREATING : heat up and cool rapidly
  • SURFACE HARDENING: put pure carbon onto surface of steel (CASE HARDENING)

BRASS = copper and zinc

BRONZE = copper and tin

A

Alkali metals

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3
Q

ALKALI METALS

  • don’t exist unless they’re ____.
  • ________: sodium atoms give off ___ in the yellow spectrum.

LITHIUM - Uses

- medicine 
- aircraft bodies

CHARCOAL and COKE : both have carbon
CHARCOAL = wood burned without oxygen
COKE = charcoal burned without oxygen

STEEL = Carbon and Iron
- the more carbon, the harder the steel

ALLOY: a mixture of 2 or more metals melted together
ANNEALING (softening) : heated up and cooled slowly

HARDENING

  • COOL WORKING/ ROLLING : pound steel into a new shape.
  • HEAT TREATING : heat up and cool rapidly
  • SURFACE HARDENING: put pure carbon onto surface of steel (CASE HARDENING)

BRASS = copper and zinc

BRONZE = copper and tin

A

ions
sodium vapor lamps
quanta

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4
Q

ALKALI METALS

  • don’t exist unless they’re ions.
  • sodium vapor lamps : sodium atoms give off quanta in the _____

______ - Uses

- medicine 
- aircraft bodies

CHARCOAL and COKE : both have carbon
CHARCOAL = wood burned without oxygen
COKE = charcoal burned without oxygen

STEEL = Carbon and Iron
- the more carbon, the harder the steel

ALLOY: a mixture of 2 or more metals melted together
ANNEALING (softening) : heated up and cooled slowly

HARDENING

  • COOL WORKING/ ROLLING : pound steel into a new shape.
  • HEAT TREATING : heat up and cool rapidly
  • SURFACE HARDENING: put pure carbon onto surface of steel (CASE HARDENING)

BRASS = copper and zinc

BRONZE = copper and tin

A

yellow spectrum

lithium

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5
Q

ALKALI METALS

  • don’t exist unless they’re ions.
  • sodium vapor lamps : sodium atoms give off quanta in the yellow spectrum.

LITHIUM - Uses

- medicine 
- aircraft bodies

CHARCOAL and COKE : both have carbon
CHARCOAL = __ burned without oxygen
COKE = ____ burned without oxygen

STEEL = Carbon and Iron
- the more carbon, the harder the steel

ALLOY: a mixture of 2 or more metals melted together
ANNEALING (softening) : heated up and cooled slowly

HARDENING

  • COOL WORKING/ ROLLING : pound steel into a new shape.
  • HEAT TREATING : heat up and cool rapidly
  • SURFACE HARDENING: put pure carbon onto surface of steel (CASE HARDENING)

BRASS = copper and zinc

BRONZE = copper and tin

A

wood

charcoal

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6
Q

ALKALI METALS

CHARCOAL and COKE : both have _____
CHARCOAL = wood burned without oxygen
COKE = charcoal burned without oxygen

A

carbon

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7
Q

ALKALI METALS

LITHIUM - Uses

  • ____
  • _______
A

medicine

aircraft bodies

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8
Q

____ = Carbon and Iron

- the more carbon, the harder it is

A

steel

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9
Q

______: a mixture of 2 or more metals melted together

A

alloy

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10
Q

steel = _____ and ____

the more ___ the harder it is

A

carbon
iron
carbon

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11
Q

____ (softening) : heated up and cooled slowly

A

annealing

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12
Q

HARDENING

  • _______ : pound steel into a new shape.
  • ______ : heat up and cool rapidly
  • _______: put pure carbon onto surface of steel (CASE HARDENING)
A

cool working / rolling

heat treating

surface hardening

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13
Q

_____ = copper and zinc

A

brass

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14
Q

annealing (softening): ____ and ______

A

heated up

cooled slowly

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15
Q

________ = copper and tin

A

bronze

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16
Q

What are the characteristics of precious metals and what are the precious metals?

What are the precious metals?

A

shiny
durable
malleable
rare

gold, silver, and platinum

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17
Q

what are some ways to obtain the precious metals (gold, silver, and platinum)?

A

panning / sluicing

18
Q

What is a measure of gold?

A

24K = 100%

19
Q

GOLD

  • KARATS - a measure of …
    - 24K = 100%
  • good _____
  • can be mixed with _____ to harden it
A

conductor

nickel

20
Q

what 2 precious metals are good conductors?

A

silver

platinum

21
Q

______

  • lightweight and strong
  • extracted from Bauxite
  • used for cars, Alnico, thermite
22
Q

ALUMINUM

  • _____ and ____
  • extracted from BAUXITE
  • used for cars, Alnico, thermite
A

lightweight

strong

23
Q

ALUMINUM

  • LIGHTWEIGHT and STRONG
  • extracted from _____
  • used for cars, Alnico, thermite
24
ALUMINUM - LIGHTWEIGHT and STRONG - extracted from BAUXITE - used for ___, ____ and __
cars Alnico thermite
25
______ - large / heavy atom - from breakdown of URANIUM ISOTOPES
lead
26
LEAD - ________ - from breakdown of URANIUM ISOTOPES
large / heavy atom
27
LEAD - large / heavy atom - from breakdown of ________
uranium isotopes
28
_______ - rare - lightweight and strong - high melting point - used for aircraft wings - SR- 71 Blackbird - Brittle
Titanium
29
is titanium rare?
yes
30
Aluminum and titanium are....
lightweight | strong
31
TITANIUM - rare - lightweight and strong - _______ - used for aircraft wings - SR- 71 Blackbird - Brittle
high melting point
32
TITANIUM - rare - lightweight and strong - high melting point - used for ________ - ________ - Brittle
aircraft wings- SR- 71 Blackbird
33
TITANIUM - rare - lightweight and strong - high melting point - used for aircraft wings - SR- 71 Blackbird - ____
brittle
34
_____ and _____ are rare
platinum | titanium
35
____ - rare - catalytic converters
platinum
36
``` _____ - excellent conductor - malleable - backs currency teeth fillings - amalgam (Ag and Hg) ```
silver
37
``` SILVER - excellent _____ - ______ - backs currency teeth fillings - amalgam (Ag and Hg) ```
conductor | malleable
38
``` SILVER - excellent conductor - malleable - What does it back up? teeth fillings - amalgam (Ag and Hg) ```
currency
39
SILVER - excellent conductor - malleable - excellent currency - _______ - ______________
teeth fillings - amalgam (Ag and Hg)
40
_____ - high electrical and thermal conductivity - ______ decreases as _____ increases - MALLEABLE / DUCTILE - bright and shiny because of delocalized electrons
metal conductivity temperature
41
METAL - high electrical and thermal conductivity - CONDUCTIVITY decreases as TEMPERATURE increases - _____ / _____ - bright and shiny because of delocalized electrons
malleable / ductile
42
METAL - high electrical and thermal conductivity - CONDUCTIVITY decreases as TEMPERATURE increases - MALLEABLE / DUCTILE - BRIGHT and SHINY because of ________
delocalized electrons
43
Metals conductivity ____ as temperature ____
decreases | increases

Chemistry (29 decks)

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