Acids, Alkalis and Titration 0.0 / 5 ? ChemistryAcids, bases and saltsIGCSEEdexcel Created by: Sam_craig05Created on: 04-02-20 07:10 What elements do acids always have? OH- 1 of 9 What elements do alkalis always have? H+ 2 of 9 What is an indicator? Chemicals that change colour in the presence of an acid or alkali. 3 of 9 What are the types of indicators? Universal indicator, methyl orange indicator, phenolphthalein indicator, litmus paper (red), litmus paper (blue) pi 4 of 9 What are bases? Bases are alkalis, which are substances that react with acids by absorbing hydrogen ions (H+). Bases that are solid are Called alkalis 5 of 9 Name examples of bases. oxides, hydroxides, and carbonates of metals such as sodium hydroxide 6 of 9 What is the equation for a salt? acid + base = salt + water 7 of 9 what is the ionic product for hydrochloric acid, sulphuric acid, nitric acid and phosphoric acid metal chloride (cl-), metal sulphate (SO4-), metal nitrate (NO3-). metal phosphate (PO3(3-) 8 of 9 Define titration A technique used to find out how much of an acid/alkali reacts with a certain volume of an acid/alkali 9 of 9
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