Chemistry unit 2

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describe group 2
alkaline eart metal, has 2 electrons in outer shell
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what happens to recativity down gruop and why
ther reactivitiy increases due to there being more sheilidng futher away fro neclus so its easier to loose outer electron
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reaction with water
water reacts with metal to form metal hydroxides + hydrogen
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decribe whats obseverd in water and is it souable
it sinks and rises it fizes and metal hydrixide is insoluable
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reaction with halides
reacts with halide and forms metal hydrixide
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reaction wth oxygen
reacts with oxygen to make metal oxide
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what is formed when reacted with oxygen
white solid
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recation with acid and what happens as you go further down group
acid + metal = salt + water, more vigourous as you go down group
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solutbiklity of hydoxides
hydoroxides have high solubility it increases down the group,
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solubitlity of sulfate
sulfates are slow at dissolving, solubility drecreasesa s yo go down the group
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flame test
mg= nio colour, ca= brick red, sr= crimson, ba= apple green
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what colour are the compiunds formed in other reactions
white
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Other cards in this set

Card 2

Front

what happens to recativity down gruop and why

Back

ther reactivitiy increases due to there being more sheilidng futher away fro neclus so its easier to loose outer electron

Card 3

Front

reaction with water

Back

Preview of the front of card 3

Card 4

Front

decribe whats obseverd in water and is it souable

Back

Preview of the front of card 4

Card 5

Front

reaction with halides

Back

Preview of the front of card 5
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