OCR AS Chemistry: 12.1 Alkanes This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Sigma bonds (σ-bonds). Tetrahedral shape and bond angles Fractional distillation Chain length and boiling point Branching and boiling point London Forces

OCR AS Chemistry: 13.3 Reactions of Alkenes This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Alkene addition reactions: Hydrogen with a nickel catalyst Halogens Hydrogen halide Steam with an acid catalyst Test for unsaturated alkenes. Bond enthalpy for sigma and pi bonds.

This PowerPoint presentation with worked examples and student questions covers: • Definitions of elements, isotopes, and ions • State mass number, atomic number, and chemical symbols • Calculate the number of neutrons

This PowerPoint presentation with worked examples and student activities covers: Topic 1.1 of Science Fundementals of the OCR Applied Science Spec. nucleus contains protons and neutrons surrounded by electrons relative masses and charges nuclear and atomic diameters nucleon number, proton number and isotopes proton number defines the type of atom nuclear notation attractive and repulsive forces within the nucleus

This PowerPoint presentation with worked examples and student activities covers: Topic 2.1 of Science Fundementals of the OCR Applied Science Spec. Types of mixtures to include solutions, colloids and suspensions Difference between colloids and suspensions in terms of particle size Uses of common colloids in nature and medicine Types of colloids to include aerosols, emulsions, foams, gels and sols Significance of colloids in nature and medicine Alloys as mixtures of metals The character and features of alloys Uses of common alloys to include amalgam, solder, bronze, titanium alloy

This PowerPoint presentation with worked examples and student questions covers: Definitions for solution, solute, solvent, insoluble, soluble. The technique of filtration The technique of crystallisation

This PowerPoint presentation with worked examples and student questions covers: • Filled outer shells result in more stable electronic structures. • The electronic configuration ionic compounds • Models of giant ionic structures

This PowerPoint presentation with worked examples and student questions covers: • Definition of bond energies • Calculating bond energies per mole • Calculating change in bond energies in reactions • Determining if a reaction is exothermic or endothermic from the change in bond energy.

This PowerPoint presentation with worked examples and student questions covers: • Definition for exothermic and endothermic • Examples of exothermic and endothermic reactions • Practical procedure for NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l) • Determining if experimental evidence show a exothermic or endothermic reaction

This PowerPoint presentation with worked examples and student questions covers: Proteins as polymers and amino acids as monomers Carbohydrates and simple sugars Comparing simple sugars (glucose, fructose, and sucrose) with complex carbohydrates (starch). DNA as a polymer and nucleotides as monomers Structure of nucleotides (phosphate group, a sugar (deoxyribose), and an organic base). Base pairing in DNA and hydrogen bonds

OCR AS Chemistry: 13.1 Properties of Alkenes This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Comparing pi-bond (π-bond) and sigma bonds (σ-bonds). Aliphatic alkenes and alicyclic arrangements of molecules s, p, d orbitals for electrons Trigonal planar shape of alkanes leading to 120 degree bond angle.

This PowerPoint presentation with worked examples and student questions covers: • Definition of ions • The electronic configuration of ions • Ions metals and nonmetals form • Drawing electron configurations

OCR AS Chemistry: 16.2 Synthetic Routes This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Functional Groups - Alkane, Alkene, Haloalkane, Alcohols, Carboxylic Acid, Ketone, Aldehyde, Ester, Amine, Nitrile. One-step synthetic routes with reagents and conditions Two-step synthetic routes with reagents and conditions

OCR AS Chemistry: 17.2 Infrared Spectroscopy This PowerPoint is a whole lessons included with student activities, animated answers, homework questions with answers provided. This lesson covers: Absorb infrared radiation increasing vibrations What determines the magnitude of vibration Fingerprint region Identifying peaks

OCR A level Chemistry: 28.3 Further Synthetic Routes This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided. This lesson covers: Functional groups Reactions of benzenes Reactions of phenols Common reactions between different functional groups Reaction conditions and reagents

This PowerPoint presentation with worked examples and student activities covers: Topic 6.1 of Module 1: Science Fundamentals of the OCR Applied Science Spec. • Interpreting laboratory tests for stress-strain graphs and Young’s modulus • Awareness that repeated loading cycles may cause failure by fatigue below the yield strength • Use of diagrams to understand that the way molecules are arranged in polymers determines the properties: chain length, crosslinking, use of plasticizers and crystallinity. • Use and rearranging of the density equation.

This PowerPoint presentation with worked examples and student questions covers: • Solids, liquids, and gases • Scientific models as a concept

This PowerPoint presentation with worked examples and student questions covers: • Calculate empirical formula and by finding the simplest whole-number ratio • Calculate relative formula mass from balanced equations.