Metals And Non-metals Flashcards
Sonorous?
If you hit it, it makes a noise.
Properties of metals?
Heat conductor, shiny, sonorous, ductile, malleable, high melting point, hard & dense, electrical conductors.
Ductile?
Can be drawn out into wire.
Malleable?
Can be hammered into different shapes.
Alloy?
Mixture of metals.
Corrosion
Undesirable process whereby a metal changes to its oxide or some other compound by combining with oxygen from the air.
Rusting
Is the corrosion of iron
Prevent rust
Galvanising painting greasing
Galvanising
Coating with zinc
Activity series
- All metals have similar properties but do not react at the same rate.
- A good way to compare metals is to see how they react with water and acid.
Reactivity
Calcium magnesium zinc copper (cats make zebras cry)
Metals react to an acid
Hydrogen gas is given off
Zinc reacts with hydrochloride acid to form
Zinc, chloride and hydrogen