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09/11/11 Lab Tests, results, and Lab Tests, results, and Sulphuric acid Sulphuric acid 100’s of free ppt’s from www.pptpoint.com library
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09/11/11 Testing for carbon dioxide Testing for carbon dioxide Gas Limewater turns  milky/cloudy Limewater
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09/11/11 Adding acid to carbonates Adding acid to carbonates Carbonates are compounds containing carbon and oxygen.  When an acid is added to a carbonate the  carbonate starts to fizz.  A gas called _________ _______ is produced.  Calcium carbonate + hydrochloric acid        calcium chloride + carbon dioxide + water CaCO 3(s)        +      HCl (aq)               CaCl 2(aq)      +     CO 2(g)      +    H 2 O (l) 2
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09/11/11 Flame tests Flame tests Compound Compound Colour of flame Colour of flame
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09/11/11 Flame tests Flame tests Compounds containing lithium, sodium, potassium, calcium and barium can be  recognised by burning the compound and observing the colours produced: Lithium Red Sodium Yellow Potassium Lilac Calcium Brick red Barium Green
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09/11/11 Metal ions Metal ions Metal compounds in a solution contain metal ions.  For example, consider calcium  chloride: Chlorine is in  group 7 so a  chloride ion will be  Cl -
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