Metals And Non Metals Flashcards
Sonorous
If you hit it it makes a noise
Properties of metals
Electrical conductions, heat conductors, high melting point, shiny, sonorous, ductile, malleable, hard&dense
Ductile
Can be drawn out into wire
Malleable
Can be hammered into different shapes
Alloy
Is a mixture of metals
Corrosion
Is an undesirable process whereby a metal changes to it’s oxide or some other compound by combining with oxygen from the air
Rusting
Is the corrosion of Iron
Rust prevention
Greasing, painting, Galvanising
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)
When metal reacts with an acid
Hydrogen gas is given off
Zinc reacts with hydrochloric acid to form
Zinc chloride and hydrogen