greenchloe1998
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any comments, points etc. add. littlemindmap on the chemistry edexcel unit 1 topic 3

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greenchloe1998
Created by greenchloe1998 about 10 years ago
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Chemistry, Unit 1hazard symbolsoxidisingprovides oxygen which allows othermaterials to burn more fiercelyliquid oxygen is an examplehighlyflammablecatches fire easilypetrol forexampleharmfulnot as dangerous astoxic but similarexample:coppersulfatetoxiccan cause death by swallowing,breathing in or absorptionhydrogencyanideirritantcan cause reddening orblistering of the skincorrosiveattacks and destroysliving tissuesvery concentratedsulfuric acidpH scalewhen adding universal indicator to an acid,alkali or base, the substance changes thesecolours.a base is asubstance witha PH more than7an acid is a substancewith pH less than 7an alkali is a base that canbe dissolved in waterHCL and indigestionan acid and a base react together to form saltand watersalts are used in fertilisers andcolouring agents within fireworksstomach produces HCLenzymes work thebest in an acidicenvironmentkills bacteriatoo much HCLcreates indigestionindigestion tablets containcalcium carbonate ( a base)neutraliseexcess acidmetal hydroxidesand metal oxides aregenerally basestherefore they reactwith an acid to forma salt and water.if it was a metal CARBONATE it would form salt, waterand CARBON dioxide when reacted with a acidElectrolysisThe splitting up of a liquidcompound by using electricity.uses a direct current source( like a battery)the electrolyte ( the compound we're breakingapart) must be in liquid form in able to conductthe electricitythe electricity is applied to theelectrolyte by two electrodes- oftenmade of carbon.we can split up HCL intohydrogen and chlorineto test for chlorine it will bleachdamp litmus paper white afterturning it redhydrogen makes asqueaky pop sound whenlit with a splintchlorine is toxicused to treat water suppliesneeded for themanufacture ofbleachand to create PVCDouble click this nodeto edit the textClick and drag this buttonto create a new node