WJEC GCSE Science (Double Award) 3430QD · 2.1
The Nature of Substances and Chemical Reactions
- Code
- 2.1
- In
- 2 Unit 2: Chemistry 1
- Course
- GCSE Science (Double Award) 3430QD
- Board
- WJEC
Codes and titles are read by a script from WJEC's published specification and have not been checked by a person. What each point covers is in the specification itself: WJEC’s specification.
Points under 2.1
- 2.1(a) Elements
- 2.1(b) Elements as substances made up of only one type of atom
- 2.1(c) Compounds
- 2.1(d) Chemical symbols and formulae
- 2.1(e) Representing molecules with diagrams
- 2.1(f) Formulae of ionic compounds
- 2.1(g) Relative atomic mass and relative molecular (formula) mass
- 2.1(h) The percentage composition of compounds
- 2.1(i) Mixtures and separation
- 2.1(j) Chromatographic data analysis and Rf values
- 2.1(k) Chemical reactions as rearrangement of atoms
- 2.1(l) Evidence of chemical reactions
- 2.1(m) Word equations
- 2.1(n) Balanced chemical equations
- 2.1(o) The percentage yield of a chemical reaction
- 2.1(p) Formula from reacting masses
- 2.1(q) Reacting masses from equations
- 2.1(r) The Avogadro constant and the mole
Points in 2 Unit 2: Chemistry 1
- 2.1 The Nature of Substances and Chemical Reactions
- 2.2 Atomic Structure and the Periodic Table
- 2.3 Water
- 2.4 The Ever-changing Earth
- 2.5 Rate of Chemical Change