Chemistry - Thermite Reaction 0.0 / 5 ? ChemistryChemical patterns and reactivity seriesMetals, metal ores and alloysAcids, bases and saltsThe Periodic TableExtracting metals /The reactivity seriesGCSENone Created by: Desiree._xCreated on: 07-03-16 18:59 What causes Metals to rust? The metals being exposed to air and water 1 of 19 How do you prevent rust? Make a bariier by painting the surface, covering with grease/oil, cover with plastic or tin plating 2 of 19 What is the chemical symbol for Sodium, Calcium, Potassium and Silver? Sodium - Na Calcium - Ca Potassium - K Silver - Ag 3 of 19 What are reactions that give off heat called? Exothermic 4 of 19 What does reduce mean? Loses oxygen 5 of 19 What does oxidized? Gains oxygen 6 of 19 What is the name of Group 1 on the Periodic Table? The Alkali Metals 7 of 19 What elements are in Group 1? Lithium, Sodium, Potassium, Rubidium. Caesium, Francium 8 of 19 What 3 elements are extremely reactive? Lithium, Potassium and Sodium 9 of 19 Why do Alkali Metals need to stored in oil? To prevent from reacting with oxygen 10 of 19 Do Alkali Metals have high density or low density? Low desnsity 11 of 19 Are alkali metals hard or soft? Soft 12 of 19 When an alkali metal is cut it is shiny then turns dull. Why is that? Because it is reacting with oxygen 13 of 19 Group 1 metals do what at low temperatures? Melt/Boil 14 of 19 What is Thermite made of? Powdered Aluminium and iron oxide 15 of 19 What gas is produced when reacting with Alkali metals? Hydrogen 16 of 19 During the Thermite reaction the aluminium takes the oxygen from iron. Why? Because Aluminium is more reactive than Iron 17 of 19 What do Group 1 metals react with besides oxygen and water? Halogens (Group 7 elements) 18 of 19 What is the Thermite Reaction used for? To weld Train Tracks Together. 19 of 19
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