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Metals and non-metals, Properties of metals, Reaction with water, Reaction…
Metals and non-metals
Advantages and disadvantages of using aluminium for cooking utensils
Advantages of aluminium
Expensive
Good conductor of heat
Light weight
Disadvantages of aluminium
Can be corroded by acid
Don't cook acidic food in aluminium Cookwares
Aluminium anodizing to prevent corrosion
Uses of metals and non-metals
Uses of metals
Utensils
Machine components
Jewellery (use of noble metal
Table
Uses of non-metals
Plastic
Fertilizer
Rocket fuel
Common uses of non-metals (elements wises)
Chlorine
Disinfectant
Phosphorus
Fertilizer
Matchboxes
Nitrogen
Fertilizer
Refridgarant
Properties of non metals
Physical properties
Soft and dull
Not Sonorous
Obtained in different colour
Brittle
Not ductile
Poor conductor of heat and electricity expect graphite
Chemical properties
Reaction with water
No reaction
Reaction with acid
No reaction
Reaction with Base
Complex reaction
Reaction with oxygen
Formed metallic oxide
Properties of metals
Physical properties of metals
Density
Lustre
Shine
Hardness
Solids
Malleability
Made into thin sheet
Ductility
Drawn into wires
Sonorous
Produce ringing sound
Good conductor
Heat and electricity
Magnetic property
Chemical properties of metals
Reaction with acid
Produce hydrogen gas
Reaction with oxygen
Formed metal oxide
Reaction with water
Very reactive
Reaction with bases
Formed salts and hydrogen gas
States of matter at room temperature