Chemistry unit 2 0.0 / 5 ? ChemistryArenesASWJEC Created by: JemmaRobertsonCreated on: 29-05-15 15:21 describe group 2 alkaline eart metal, has 2 electrons in outer shell 1 of 12 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 2 of 12 reaction with water water reacts with metal to form metal hydroxides + hydrogen 3 of 12 decribe whats obseverd in water and is it souable it sinks and rises it fizes and metal hydrixide is insoluable 4 of 12 reaction with halides reacts with halide and forms metal hydrixide 5 of 12 reaction wth oxygen reacts with oxygen to make metal oxide 6 of 12 what is formed when reacted with oxygen white solid 7 of 12 recation with acid and what happens as you go further down group acid + metal = salt + water, more vigourous as you go down group 8 of 12 solutbiklity of hydoxides hydoroxides have high solubility it increases down the group, 9 of 12 solubitlity of sulfate sulfates are slow at dissolving, solubility drecreasesa s yo go down the group 10 of 12 flame test mg= nio colour, ca= brick red, sr= crimson, ba= apple green 11 of 12 what colour are the compiunds formed in other reactions white 12 of 12
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