* KS4 Science GCSE Chemistry 9. Examples of word & symbol equations for salt preparations at Doc Brown's
|
|
Doc Brown's Chemistry The pH scale of acidity and alkalinity, acids, alkalis, salts and neutralisation 9. Examples of word & symbol equations for salt preparations Revision Notes KS4 Science IGCSE/O level/GCSE Chemistry Information Study Notes for revising for AQA GCSE Science, Edexcel 360Science/IGCSE Chemistry & OCR 21stC Science, OCR Gateway Science (revise courses equal to US grades 9-10) Advanced Level Chemistry Acid-Base Revision Notes - use index GCSE Sub-index: Index of all pH, Acids, Alkalis, Salts Notes 1. Examples of acid-alkali chemistry : 2. pH scale, indicators, ionic theory of acids-alkali neutralisation : 3. pH examples of acid, neutral or alkaline solutions : 4. Acid reactions with metals/oxides/hydroxides/carbonates and neutralisation reactions : 5. Reactions of bases-alkalis like sodium hydroxide : 6. Four methods of making salts : 7. Changes in pH in a neutralisation : 8. Important formulae, salt solubility and water of crystallisation : 9. Further examples of word/symbol equations for salt preparations : 10. More on Acid-Base Theory and Weak and Strong Acids 9. Further examples of word and symbol equations for salt preparations i.e. reactions of oxides, hydroxides or carbonates with acids where it says similar, you can just change the metal name/symbol These reactions apply to the salt making methods (a) & (b) described in section 6. and also a word/symbol equation worksheet questions with answers 1a. copper(II) carbonate + sulphuric acid ==> copper(II) sulphate + water + carbon dioxide (method b) 1b. CuCO3(s) + H2SO4(aq) ==> CuSO4(aq) + H2O(l) + CO2(g) 1c. Similar for many other Group 2 and Transition metal carbonates e.g. Mg, Ca and Fe, Co, Ni, Zn 2a. magnesium hydroxide + hydrochloric acid ==> magnesium chloride + water (method b) 2b. Mg(OH)2(s) + 2HCl(aq) ==> MgCl2(aq) + 2H2O(l) 2c. Similar for many other Group 2 and Transition metal hydroxides e.g. Ca, Sr, Ba and Fe, Co, Ni, Cu, Zn 3a. zinc + sulphuric acid ==> zinc sulphate + hydrogen (method b) 3b. Zn(s) + H2SO4(aq) ==> ZnSO4(aq) + H2(g) 3c. Similar for many other Group 2 and Transition metals e.g. Mg, Ca and Fe, Co, Ni 4a. ammonia + nitric acid ==> ammonium nitrate (method a) 4b. NH3(aq) + HNO3(aq) ==> NH4NO3(aq) 5a. zinc oxide + hydrochloric acid ==> zinc chloride + water (method b) 5b. ZnO(s) + 2HCl(aq) ==> ZnCl2(aq) + H2O(l) 5c. Similar for many other Group 2 and Transition metal oxides e.g. Mg, Ca, Ba and Co, Ni, Cu 6a. calcium carbonate + hydrochloric acid ==> calcium chloride + water + carbon dioxide (method b) 6b. CaCO3(s) + 2HCl(aq) ==> CaCl2(aq)+ H2O(l) + CO2(g) 6c. Similar for many other Group 2 and Transition metal carbonates e.g. Mg, Sr, Ba and Ni, Co, Zn 7a. sodium carbonate + hydrochloric acid ==> sodium chloride + water + carbon dioxide (method a) 7b. Na2CO3(s) + 2HCl(aq) ==> 2NaCl(aq) + H2O(l) + CO2(g) 8a. potassium hydroxide + hydrobromic acid ==> potassium bromide + water (method a) 8b. KOH(aq) + HBr(aq) ==> KBr(aq) + H2O(l) 8c. Its the same for any Group 1 Alkali Metal hydroxide e.g. LiOH, NaOH, RbOH etc. and other Group 7 halogen acids e.g. HCl hydrochloric acid. 9a. sodium hydrogencarbonate + hydrochloric acid ==> sodium chloride + water + carbon dioxide 9b. NaHCO3(s) + HCl(aq) ==> NaCl(aq) + H2O(l) + CO2(g) 9c Note that hydrogencarbonate is commonly known as 'bicarbonate'.9d. Its the same for any Group 1 Alkali Metal hydrogencarbonate e.g. for Li, K etc. ALSO reactions of acids word/symbol equation worksheet questions with answers |
|
|
|
|
|||||||||
  |