Metals and materials Flashcards
Sonorous and its uses
Meaning that the metal makes sound when hit . It’s uses are making bells, and strings of musical instruments like violin and sitar
Ductility and its uses
Meaning it can be streched out. Its uses are metal cables and structural beams
Malleable and its uses
`Meaning can be bent into new shapes. The material has the ability to deform under compressive stress.
Lustre and its uses
Meaning shiny. Can be used for jewllery.
Conductivity and its uses
Meaning ability to transmit heat or electricity. This material is mostly used for machinery and appliance wiring systems
What is hydrocarbon?
What is the reactivity series?
depends of how many valence electrons the metal has.
What is corrosion?
The more reactive a metal is, the more likely it will be to corrode.
What is oxidation
when metals react with oxygen
Chemical name for rust?
iron oxide
How can you prevent iron from corroding?
Oiling=coating of oil, mouistire cant react with the iron in the metal and cause rust.
Painting=paint acts as a physical barrier between the metal and any oxygen and water in the enviroment.
Galvanisation=barrier that prevents corrosive substances from reaching the underlying steel on iron
Rust chemical equation
Metal + oxygen –> Metal oxide
What is an organic compound?
carbons+hydrogens
Methane
1 carbon atom surrounded by 4 hydrogen atoms.
Ethane
2 carbon atom surrounded by 6 hydrogen atoms.
