• Describe the three common mechanisms required for AS chemistry

Slides:

Advertisements

Similar presentations

K c and equilibrium. What does K c signify? If K c = 1 then the position of equilibrium is half way between products and reactants If K c > 1 then the.

Advertisements

Week 6 © Pearson Education Ltd 2009 This document may have been altered from the original Describe the preparation of aliphatic amines by substitution.

Week 28 Describe, with the aid of diagrams, the gross structure of the human brain and outline the functions of the cerebrum, cerebellum, medulla oblongata.

Outline the use of alkenes in the manufacture of margarine by catalytic hydrogenation of unsaturated vegetable oils. Outline the use of alkenes in the.

© Pearson Education Ltd 2009 This document may have been altered from the original Week 30 Explain the advantages to organisms of innate behaviour. Describe.

Explain that ozone is continuously being formed and broken down in the stratosphere by ultraviolet radiation. Describe, using equilibria, how the ozone.

Use the terms homologous series and functional group. Understand the terms hydrocarbon, saturated, unsaturated. State that alkanes and cycloalkanes are.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand how to use.

State that enzymes are globular proteins with a specific tertiary structure. State that enzymes catalyse metabolic reactions in living organisms. © Pearson.

Describe how the model of the atom has changed over the years, and how it continues to do so. Understand that scientific knowledge is always evolving.

Explain the use of crude oil as a source of hydrocarbons, as well as their uses. Explain that the hydrocarbons in crude oil are separated using fractional.

Week 23 © Pearson Education Ltd 2009 This document may have been altered from the original Use the enthalpy change of solution of a simple ionic solid.

WEEK 1 You have 10 seconds to name…

Calculate enthalpy changes directly from appropriate experimental results, including the use of the relationship: energy change = mcΔT. Week 23 © Pearson.

Week 21 © Pearson Education Ltd 2009 This document may have been altered from the original Describe what is meant by a buffer solution. State that a buffer.

Week 4 © Pearson Education Ltd 2009 This document may have been altered from the original Explain the water solubility of carboxylic acids. Describe the.

Reaction Mechanism Animation Briefing Seminar on Revised Sixth Form Chemistry Curriculum 19 March 2005.

Ch 19 Reactions of Benzene 1. Give the products of the following electrophilic aromatic substitution reactions. Also show how the electrophile is generated.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To know how to tell that.

Know the formulae of common acids and bases. State that an acid releases H + ions in aqueous solution. State that common bases are metal oxides, metal.

Week 7 © Pearson Education Ltd 2009 This document may have been altered from the original State the general formula for an α-amino acid as RCH(NH 2 )COOH.

Week 2 © Pearson Education Ltd 2009 This document may have been altered from the original Explain the relative resistance to bromination of benzene compared.

Week 25 © Pearson Education Ltd 2009 This document may have been altered from the original Explain the terms: redox, oxidation number, half-reaction, oxidising.

Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education This document may have been altered from the original. To understand an easy way.

Give reasons why non-invasive techniques are needed for diagnosis. Describe the properties of ultrasound.

Structures of irreversible kinase inhibitors afatinib and ibrutinib

©2004 by Pearson Education. ©2004 by Pearson Education.

Reaction mechanism of the Michael addition reaction between a nucleophile and a polarized double bond. Source: Nucleophilic Substitution, Addition, and.

Objectives To understand how to use proportion to find which item is better value. Edexcel GCSE Maths Spec B – Modular: Booster C © Pearson Education.

©2004 by Pearson Education. ©2004 by Pearson Education.

Predict the splitting patterns of the protons in a given molecule.

Use the terms homologous series and functional group.

Describe dative covalent (coordinate) bonding.

• Describe a covalent bond as a shared pair of electrons.

Describe the reactions of amines with acids to form salts.

Week 28 • Explain that ozone is continuously being formed and broken down in the stratosphere by ultraviolet radiation. • Describe, using equilibria,

Recognise and name aldehydes and ketones.

Define pH as pH = –log[H+(aq)]. Define [H+] = 10–pH.

Week 5 Describe a triglyceride as a triester of glycerol (propane-1,2,3-triol) and fatty acids. Compare the structures of saturated fats, unsaturated fats.

Week 30 Describe redox behaviour in transition elements using suitable examples. Carry out redox titrations and carry out structured calculations involving.

Apply the principles of electrode potentials to modern storage cells.

• Describe early attempts to order the elements.

State the use of polyamides as fibres in clothing.

Explain and use the term: lattice enthalpy.

Week 14 • Explain the use of crude oil as a source of hydrocarbons, as well as their uses. • Explain that the hydrocarbons in crude oil are separated.

• Explain the trend in boiling points of Cl2, Br2 and I2.

Deduce, from orders, a rate equation of the form rate = k[A]m[B]n.

Week 24 Explain that entropy is a measure of the disorder of a system, and that a system becomes energetically more stable when it becomes more disordered.

Week 13 Analyse absorptions in an infrared spectrum to identify the presence of functional groups in an organic compound. Analyse molecular ion peaks and.

• Explain the overlap of adjacent p-orbitals to form a π-bond.

Describe an acid as a proton donor and a base as a proton acceptor.

Describe the elements Ti–Cu as transition elements.

• Describe the structure, general formula and uses of halogenoalkanes.

• Outline the uses of ethanol and methanol.

Explain and use the term: rate of reaction.

• Define and use the term molar mass.

Explain the term ligand in terms of coordinate bonding.

• Understand that energy is conserved.

• Explain how a permanent dipole can result in a polar bond.

Explain the terms: arene and aromatic.

Explain and use the terms: order and half-life.

Week 29 • Explain the formation of carbon monoxide, oxides of nitrogen and unburnt hydrocarbons from the internal combustion engine. • State environmental.

Understand the significance of Kc values.

• State that noble gases have a stable electron configuration.

Determine the units for Kc.

3 Week A: May 1 – 19 3 Week B: May 22 – June 9

• Explain the trend in reactivity of Group 2 elements down the group.

• State le Chatelier’s principle.

Presentation transcript:

• Describe the three common mechanisms required for AS chemistry Week 21 • Describe the three common mechanisms required for AS chemistry - radical substitution - electrophilic addition - nucleophilic substitution © Pearson Education Ltd 2008 This document may have been altered from the original

The electrophilic addition mechanism Week 21 The electrophilic addition mechanism © Pearson Education Ltd 2008 This document may have been altered from the original

The nucleophilic substitution mechanism Week 21 The nucleophilic substitution mechanism © Pearson Education Ltd 2008 This document may have been altered from the original