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Chemistry End-Of-Yr

TermDefinition
Alkali Metals' strength Very soft
Alkali Metals' reactivity Very reactive with water - forms metal hydroxide
Alkali Metals' density Low
Alkali Metals' compounds Colourless
Alkali Metals' melting points Low
Alkali Metal group trend Melting point lowers as you move down the group and reactivity of metals increases as you move down the group
Transition Metals' melting points High
Transition Metals' Reactivity Low
Transition Metals' strength Strong and hard
Transition Metals' density Low
Transition Metals' compounds Coloured
Halogens' melting points Low
Halogens' strength Brittle when solid
Halogens' conductivity poor
Halogens' molecular structure diatomic
Halogens' compounds Coloured vapours
Halogens' trends Melting points increase as you move down the group and colours become darker as you move down the group
Helium use Balloons as it is less dense than air
Neon use Advertising signs as it glows when electricity is passed through it
Argon use Light bulbs as it stops the filament from burning away as it is unreactive
Krypton Used in lasers.
Noble gas trends Boiling points increase as you move down the group and density increase
Acid + Metal Salt + Hydrogen
Acid + Metal Carbonate Salt + Water + Carbon Dioxide
Acid + Alkali Salt + Water
Acid + Metal Oxide Salt + Water
How to make a salt using a soluble base Titration
How to make a salt using an insoluble base Add an excess of base then filter then evaporate water.
Created by: 279392392395438
 

 



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