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Science
Science(Metals and Non-metals)
Question | Answer |
---|---|
What is Lustrous? | shiny |
What is sonorous? | ringing |
What is malleable? | can be hammered into different shapes and sizes |
Give an example of a malleable metal | Alluminium |
What is ductile? | can be stretched out into wire |
Give an example of a ductile metal | Copper |
Give 3 characteristics of metals | Lustrous, sonorous, malleable, high melting points |
Give 3 characteristics of non-metals | brittle, low melting points, poor heat conductors |
What is an Alloy? | A mixture of metals |
Give an example of an alloy | copper and tin = bronze |
What is the corrosion of iron? | Rusting |
To demonstrate that oxygen and water are nessory for rusting | Result; nails in test tube C rust because they are exposed to water and oxygen. Nails in A do not rust because it has calcuim chloride in it. B does not rust because it has boiled water and a layer of oil to keep oxygen out |