Metals And Non-metals Flashcards
Properties of metals?
Heat conductor, shiny, sonorous, ductile, malleable, high melting point , hard and dense, electrical conductors.
Corrosion?
Is am undesirable process whereby a metal changes to its oxide or some other compound by combining with oxygen from the air.
Sonorous?
If you hit it , it makes a noise
Ductile?
Can be drawn out into wire
Malleable?
Can be hammered into different shapes
Alloy?
Mixture of metals
Rusting?
The corrosion of iron
Rust prevention
Galvanising, painting and 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 with and acid?
Hydrogen gas is often given off.
Zinc reacts with hydrochloric acid to form.
Zinc chloride and hydrogen