extraction and uses of metals

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/14

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

15 Terms

1
New cards

stainless steel

  • contains

  • properties 

  • uses

  • >10% chromium 

  • doesn't rust

  • cutlery/sinks

2
New cards

reducing agent in blast furnace, because

carbon monoxide - has brought about reduction of iron oxide - it has been oxidised
Fe2O+ 3CO → 2Fe + 3CO2  

3
New cards

cathode electrolysis

Al3++ 3e-  → Al

  • reduction

  • because Al3+ gains electrons

4
New cards

positive anode electrolysis

2O2- → O2+ 4e-

  • oxidation

  • oxygen ion is losing electrons

5
New cards

metals below carbon? extracted by?

zinc 
iron
copper
DISPLACEMENT WITH C OR CO

6
New cards

Metals above carbon are? extracted by?

Potssium
sodium
lithium
calcium
magnesium
aluminium
ELECTROLYSIS

7
New cards

low carbon steel

  • contains

  • properties 

  • uses

  • <0.3% carbon

  • easily shaped

  • car body panels/domestic goods

8
New cards

high carbon steel

  • contains

  • properties 

  • uses

  • 1-2% carbon

  • hard

  • cutting tools

9
New cards

electrolysis
why is aluminum mixed with cryolite?

lowers melting point
reduces operating risk

10
New cards

copper

  • properties 

  • uses

  • conducts electricity → domestic wires

  • won't react with water → plumbing pipes

11
New cards

blast furnace- limestone is used to 

reacts with impurities in ore, forms slag(waste product)

12
New cards

BLAST FURNACE - IRON ORE
what is being reduced, because

iron oxide - it has lost oxygen
Fe2O+ 3CO → 2Fe + 3CO2  

13
New cards

an ore is

a rock that contains a sufficient amount of a metal compound to make it economically viable to extract the metal

14
New cards

an alloy is, makes it harder because

  • a mixture of a metal with with atoms of other elements

  • the different sized atoms introduced into the metal disrupt the regular layers of metal ions + therefore stop them from sliding over each other


15
New cards

aluminium

  • properties 

  • uses

  • low density, malleable, unreactive -----> drink cans

  • durable, low density -----> aircraft bodies