Chemistry IGCSE Cambridge Dr. Samah Fayez Quiz 8 Acid & Base (9.1& 9.2) Hussein Mohamed Name: ---------------------------- Group: ---------------------------- 1|Page Chemistry IGCSE Cambridge 2|Page Dr. Samah Fayez Chemistry IGCSE Cambridge 3|Page Dr. Samah Fayez Chemistry IGCSE Cambridge 2 Dr. Samah Fayez 2LiI 2 H2 carbon zinc dioxide iodide 2 MgI 2 water H O 2 no more effervescence magnesium carbonate a solution in which no more solute will dissolve at this temperature the solubility deceases as the temperature decreases 4|Page Chemistry IGCSE Cambridge mix and stir the two solutions filter (to obtain residue) wash (the residue) using water dry the residue between filter papers / in a warm place Pb2+(aq) + SO42- (aq) 5|Page --------- PbSO4(s) Dr. Samah Fayez Chemistry IGCSE Cambridge green crystals no reaction white precipitate green precipitate green precipitate 6|Page Dr. Samah Fayez Chemistry IGCSE Cambridge calcium I Believe in you 7|Page Dr. Samah Fayez Chemistry IGCSE Cambridge 8|Page Dr. Samah Fayez