Presentation is loading. Please wait.

Presentation is loading. Please wait.

Displacement of halogens

Published byShawn Simms Modified over 9 years ago

Similar presentations

Presentation on theme: "Displacement of halogens"— Presentation transcript:

1 Displacement of halogens
If a halogen is added to a solution of a compound containing a less reactive halogen, it will react with the compound and form a new one. This is called displacement. sodium chloride sodium fluoride chlorine fluorine + F2 (aq) 2NaCl (aq) 2NaF (aq) Cl2 (aq) A more reactive halogen will always displace a less reactive halide from its compounds in solution.

2 Halogen Displacement

3 Halogen Displacement Q) Write an equation to show the reactions which are taking place in tubes 1,2 and 4 KBr added KI added KI added Bromine water KCl added Chlorine water Iodine water KBr added KCl added Colour change Yes Yes No Yes No No

4 Displacement Equations
Potassium Bromide and Chlorine: 2KBr + Cl2  2KCl + Br2 Potassium Iodide and Chlorine: 2KI + Cl2  2KCl + I2 Potassium Iodide and Bromine: 2KI + Br2  2KBr + I2

5 Displacement reactions: summary
The reactions between solutions of halogens and metal halides (salts) can be summarised in a table: 2KCl + I2 2KBr + I2 halogen chlorine bromine iodine salt (aq) potassium chloride potassium iodide potassium bromide 2KCl + Br2 no reaction

Download ppt "Displacement of halogens"

Similar presentations

Angstrom Care 1www.AngstromCare.com Angstrom Care Halogens II.

Angstrom Care 1www.AngstromCare.com Angstrom Care Halogens II.
12 Chemistry 2.2 quantitative chemistry CR 07 Halogens: F 2, Cl 2, Br 2, I 2 Halogens as oxidants: Halogens attract electrons from other substances – they.

12 Chemistry 2.2 quantitative chemistry CR 07 Halogens: F 2, Cl 2, Br 2, I 2 Halogens as oxidants: Halogens attract electrons from other substances – they.
Explain, in terms of electrons, why potassium reacts more violently than sodium. (3 marks) bigger atom or outer shell electron further from nucleus or.

Explain, in terms of electrons, why potassium reacts more violently than sodium. (3 marks) bigger atom or outer shell electron further from nucleus or.
KNOCKHARDY PUBLISHING

KNOCKHARDY PUBLISHING
Group 7 – The Halogens F Cl Br I At. Properties of the Halogens F Cl Br I At Colour Green Orange Grey/black State Gas Liquid Solid Yellow BlackSolid Gas.

Group 7 – The Halogens F Cl Br I At. Properties of the Halogens F Cl Br I At Colour Green Orange Grey/black State Gas Liquid Solid Yellow BlackSolid Gas.
Background The halogens, the group VII elements, are all oxidising agents as they tend to gain electrons to form halide ions. For example, chlorine tends.

Background The halogens, the group VII elements, are all oxidising agents as they tend to gain electrons to form halide ions. For example, chlorine tends.
Periodicity is a regular periodic variation of properties of elements with atomic number and positions in the periodic table.

Periodicity is a regular periodic variation of properties of elements with atomic number and positions in the periodic table.
Halogens. Elements in the Halogen Group Group 7 Elements Similar reactions to with other elements because they all gain one electron. All react with.

Halogens. Elements in the Halogen Group Group 7 Elements Similar reactions to with other elements because they all gain one electron. All react with.
? Chemical Reactions. ? Observing Chemical Reactions Evidence: 1)The colour changes 2)Bubbles A gas is produced 3)The mixture gets hotter (EXOTHERMIC)

? Chemical Reactions. ? Observing Chemical Reactions Evidence: 1)The colour changes 2)Bubbles A gas is produced 3)The mixture gets hotter (EXOTHERMIC)
Group 7, the Halogens.

Group 7, the Halogens.
Unit 20 Oxidation and reduction Activity 20.2 Investigating redox reactions of aqueous chlorine Reference in textbook: Section 20.14 S.

Unit 20 Oxidation and reduction Activity 20.2 Investigating redox reactions of aqueous chlorine Reference in textbook: Section S.
Chapter 19 Gas Stoichiometry.

Chapter 19 Gas Stoichiometry.
All toxic All form Diatomic molecules All form ionic salts

All toxic All form Diatomic molecules All form ionic salts
Group 7, the Halogens.

Group 7, the Halogens.
HALOGENS. Electron structure and reactivity HHe Rn Xe Kr Ar Ne RaAcRfDbSgBhHsMtDsRg??????? BaLaHfTaWReOsIrPtAuHgTlPbBiPoAt SrYZrNbMoTcRuRhPdAgCdInSnSbTeI.

HALOGENS. Electron structure and reactivity HHe Rn Xe Kr Ar Ne RaAcRfDbSgBhHsMtDsRg??????? BaLaHfTaWReOsIrPtAuHgTlPbBiPoAt SrYZrNbMoTcRuRhPdAgCdInSnSbTeI.
Redox Reactions and Oxidation States. The Basics...  ‘Redox’ is used to describe reactions where oxidation and reduction take place.  If one reactant.

Redox Reactions and Oxidation States. The Basics...  ‘Redox’ is used to describe reactions where oxidation and reduction take place.  If one reactant.
Displacement Reactions. Lets look at the reaction between chlorine and potassium bromide When chlorine is bubbled through potassium bromide solution (colourless),

Displacement Reactions. Lets look at the reaction between chlorine and potassium bromide When chlorine is bubbled through potassium bromide solution (colourless),
Group 7 – The Halogens F Cl Br I At Visit

Group 7 – The Halogens F Cl Br I At Visit
Write the word and chemical equation for the reaction of water and sodium.

Write the word and chemical equation for the reaction of water and sodium.
 Translating is when I give you a word equation that you have to turn into an equation written with the formulas  Hints: Diatomic molecules are always.

 Translating is when I give you a word equation that you have to turn into an equation written with the formulas  Hints: Diatomic molecules are always.

Similar presentations

Ads by Google