Chemistry GCSE: Acid's, Bases and Salts. 4.0 / 5 based on 2 ratings ? ChemistryAcids, bases and saltsGCSEAQA Created by: 11nmillerCreated on: 19-04-16 11:46 What do the symbols S, L, AQ and G mean? Solid, liquid, aqueous (dissolved in water), gas. 1 of 21 Complete the Equation: Acid + Base = Acid + Base = Salt + water 2 of 21 Complete the equation Acid + Metal = Acid + Metal = Salt + hydrogen 3 of 21 All acids contain which ion? Hydrogen ion H+ 4 of 21 All alkalis contain which ion? Hydroxide ion OH- 5 of 21 Name 3 common acids. Hydrochloric acid HCl, Nitric acid HNO3, Sulfuric acid H2SO4, Citric acid and Ethanoic acid (vinegar), 6 of 21 Name 3 common alkalis. Potassium hydroxide KOH, Sodium hydroxide NaOH, ammonium hydroxide NH4OH or NH3(aq)(ammonia solution) 7 of 21 If you have a salt solution how do you turn it into crystals. Heat the solution to evaporate off the water leaving crystals. 8 of 21 What is the name of a soluble base? Alkali. 9 of 21 Which salts do sulfuric acid acid form? Sulfate salts. 10 of 21 Which salts do hydrochloric acid form? Chloride salts. 11 of 21 Which salts do nitric acid form? Nitrate salts. 12 of 21 Complete the equation: soluble salt + soluble salt = soluble salt + soluble salt = insoluble salt + soluble salt 13 of 21 What are ammonium salts used for? Making fertilisers. 14 of 21 What does the pH scale measure The amount of acidity or alkalinity. 15 of 21 What is the pH of pure water? pH 7 universal indicator turns green. 16 of 21 What is a base? A substance which reacts with an acid to neutralise it. 17 of 21 Which metals will acids react with? All metals that are above hydrogen in the reactivity series (remember in the exam the reactivity series is on the back of the Periodic table 18 of 21 When a soluble salt is made from an acid and an alkali what do we use to show that neutralisation is complete? An indicator usually phenolphthalein. 19 of 21 What is the equation of neutralisation? H+ + OH- = H2O 20 of 21 Complete the equation: Acid + Alkali = Acid + Alkali = Salt + water 21 of 21
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