Created by AliceBridgnell
about 11 years ago
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Ionic equation for neutralisation:H+(aq) + OH-(aq) ---> H2O (l)
Acids always have hydrogen ions present (H+)alkalis always have hydroxide ions (OH-)
The salt formed when sodium hydroxide reacts with sulphuric acid is Sodium Sulphate
The balanced symbol equation for copper (ll) oxide and sulphuric acid is:CuO + H2SO4 = CuSO4 + H2O
Reactions of magnesium with ethanoic acid: fizzing/bubbles of gas heat given out magnesium eventually disappears solution remains colourless
A salt is a neutral substance which is made up of an acid and an alkali
Formula for potassium nitrate: KNO3
2 compounds which react to give potassium nitrate:potassium and nitric acid
Reagent used to test for the presence of sulphate in copper sulphate:Barium chloride and the result will be a white precipitate
To determine pH:Add some U.I to the sample then compare this to the pH scale
A weak acid: lemon juicea strong alkali: sodium hydroxideneutral: water
Box B: corrosive
Observations of Copper (ll) carbonate and hydrochloric acid:blue/green powder dissolves to a clear green solutionfizzing
Balanced equation of copper (2) carbonate and hydrochloric acid:2HCl + CuCO3 = CuCl2 + H2O + CO2
Removal of CuCO3 from salt:filtration
Flame Test: clean a nichrome wire by dipping it into conc. HCl hold the wire in a hot flame to clean dip the clean nichrome wire into the conc. HCl again and then into the unknown solid hold the wire in a blue bunsen flame observe the colour of the flame
lilac flame: K+ (potassium)yellow percipitate: NA+ (sodium)
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