Reactions of metals 4.0 / 5 based on 1 rating ? Applied ScienceReactions of metals with water, acid and oxygenReactivity seriesDislacement ReactionsGCSEAQA Created by: amypowerCreated on: 28-06-15 17:15 What metals react vigorously with cold water? Alkali metals 1 of 23 What gas is given off in each reaction? Hydrogen 2 of 23 When does the speed of the reaction increase in groups? Increases as you go down the group 3 of 23 Give 3 alkali metals? Lithium, Potassium and Sodium 4 of 23 What happens to llithium when put in water? Floats, fizzes steadily until it dissapears 5 of 23 Where do the metals have to be in the reactivity series to react with dilute acids? Above hydrogen 6 of 23 When metals react with dilute acids what does it make? Salt + Hydrogen 7 of 23 What 3 metals react the most with acids? Potassium, Sodiuma and Calcium 8 of 23 What do you know when you hold a lit splint to a test tube and hear a squeaky pop? That there is hydrogen 9 of 23 What happens to the chemical formula when acids react with metals? If the metal is more reactive than hydrogen it will take its place in the acid 10 of 23 When metals react with oxygen what does it make with an example? Metal oxides E.G magnesium + oxygen = magnesium oxide 11 of 23 Are metal oxides acid or alkaline? Alkaline because they have a pH higher than 7 12 of 23 When non metals react with oxygen what do they make? Oxides 13 of 23 Are non metal oxides acid or alkaline? Acid because they have a pH lower than 7 14 of 23 What will metal oxides react with to make salt and water? Acid and non metals alkali 15 of 23 What is the reactivity series ( in order) ? Potassium, Sodium, Calcium, Magnesium, Aluminium, Carbon, Zinc, Iron, Lead, Hydrogen, Copper, Silver, Gold 16 of 23 Which 2 metals are usually found in pure form? Silver and Gold 17 of 23 What happens in a displacement reaction? A more reactive metal will displace a less reactive metal from its compound. 18 of 23 Give an example of a displacement reaction? Magnesium in a solution of copper sulphate, magnesium will take the place of copper creating magnesium sulphate 19 of 23 What happens in a Endothermic reaction? Heat is taken in 20 of 23 What happens in a Exothermic reaction? Heat is given out 21 of 23 What do catalysts do? Increase the speed of reaction. 22 of 23 What happens to the atoms ina chemical reaction? Bonds get broken and made in the reaction as atoms rearrange themselves 23 of 23
Comments
No comments have yet been made