What this topic covers
Topic C2: Elements, compounds and mixtures has 3 subtopics:
- Purity and separating mixtures
- Bonding
- Properties of materials
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GCSE OCR Higher Combined Science Chemistry · Topic 2 of 6
Topic C2: Elements, compounds and mixtures – GCSE OCR Higher Combined Science Chemistry revision notes
Choose a subtopic. Topic C2: Elements, compounds and mixtures covers Purity and separating mixtures, Bonding, and Properties of materials in GCSE OCR Higher Combined Science Chemistry. 38 lessons in 3 subtopics.
Revise Topic C2: Elements, compounds and mixtures for GCSE OCR Higher Combined Science Chemistry, including Purity and separating mixtures and Bonding.
38
Lessons
3
Subtopics
Topic C2: Elements, compounds and mixtures lessons by subtopic
38 lessons, grouped by subtopic.
Purity and separating mixtures
- Elements, Atoms and Symbols
- Compounds and Chemical Formulae
- Chemical Equations and Reactions
- What is a Pure Substance?
- Using Melting and Boiling Points to Test Purity
- Common Alloys and Their Properties
- Analysing Alloy Compositions and Applications
- Understanding Formulations
- Calculating Relative Formula Mass
- Percentage by Mass in Compounds
- Paper Chromatography - Principles and Applications
- Chromatogram Analysis and Rf Values
Bonding
- Understanding the Three Types of Chemical Bonds
- Where Different Types of Bonding Occur
- How ionic bonds form through electron transfer
- Drawing dot and cross diagrams for ionic compounds
- Understanding Ionic Structure and Bonding
- Representing Ionic Structures and Finding Empirical Formulas
- Physical and Chemical Properties of Metals and Non-metals
- Ion Formation and Electron Arrangement
- Understanding covalent bonds and drawing molecules
- Types of covalent structures and their representations
- Working with molecular diagrams and formulas
- The Structure of Metals
Properties of materials
- The Structure and Properties of Diamond
- Structure and Properties of Graphite
- Discovering Graphene and Fullerenes
- Fullerenes and Carbon Nanotubes
- Giant Ionic Lattice Structures
- Physical Properties of Ionic Compounds
- Electrical Conductivity of Ionic Compounds
- Physical Properties of Small Molecules
- How Molecule Size Affects Properties and Electrical Conductivity
- Structure and Properties of Polymers
- Giant Covalent Structures and Their Properties
- Giant Metallic Structure and Bonding
- Layered Structures and Alloys
- Why Metals Conduct Electricity and Heat
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Frequently asked questions
What is Topic C2: Elements, compounds and mixtures?
Topic C2: Elements, compounds and mixtures covers Purity and separating mixtures, Bonding, and Properties of materials in GCSE OCR Higher Combined Science Chemistry. 38 lessons in 3 subtopics.
What is an element?
An element is a substance made of only one type of atom, represented by a unique chemical symbol. The Elements, Atoms and Symbols notes cover this in full.
What is a compound?
A compound is a substance formed when two or more elements are chemically combined in fixed proportions. The Compounds and Chemical Formulae notes cover this in full.
What is an ion?
An ion is an atom or group of atoms that has gained or lost electrons, giving it an overall electric charge. The Ion Formation and Electron Arrangement notes cover this in full.
What is an alloy?
An alloy is a mixture of two or more elements, at least one of which is a metal. The Layered Structures and Alloys notes cover this in full.
What is the structure of graphite?
Graphite has a layered giant covalent structure in which each carbon atom forms three covalent bonds with neighbouring carbon atoms, creating hexagonal rings. The Structure and Properties of Graphite notes cover this in full.
What is a polymer?
A polymer is a substance with very large molecules made from many repeating units, called monomers, joined by strong covalent bonds. The Structure and Properties of Polymers notes cover this in full.
What is a chromatogram?
A chromatogram is the pattern of separated substances produced by chromatography, showing spots at different distances from the origin. The Chromatogram Analysis and Rf Values notes cover this in full.
What is a covalent bond?
A covalent bond is a chemical bond formed when two atoms share a pair of electrons. The Understanding covalent bonds and drawing molecules notes cover this in full.