Edexcel IGCSE Chemistry 复习笔记 1.2.4 Interpreting Chromatograms Identifying Mixtures Pure substances will produce only one spot on the chromatogram If two or more substances are the same, ...
今年夏天，英国的学生参加了自疫情以来的第一场线下GCSE 和 A-Level 考试。GCSE和A-Level考试是英国学子必经的“大考”，虽说这次是疫情后的首次线下考试，但是在考试难度、考试水平上考试局还是保持着一贯的水准。...
Edexcel IGCSE Chemistry 复习笔记 1.2 3 Separation Techniques Simple Distillation This is used to separate a liquid and soluble solid from a solution (e.g., water from a solution of salt wate...
Edexcel IGCSE Chemistry 复习笔记 1.2 2 Pure Substance vs Mixture Pure Substance vs Mixture In everyday language we use the word pure to describe when something is natural or clean and to whi...
Edexcel IGCSE Chemistry 复习笔记 1.2.1 Element, Compound or Mixture Classify an Element, Compound or Mixture You need to know the following definitions Classify an Element, Compound o...
Edexcel IGCSE Chemistry 复习笔记 1.1.5 Practical: Investigate the Solubility of a Solid in Water at a Specific Temperature Practical: Investigate the Solubility of a Solid in Water at a Specific Te...
Edexcel IGCSE Chemistry 复习笔记 1.1.4 Solubility Solubility Solubility is a measurement of how much of a substance will dissolve in a given volume of a liquid The liquid is called the solve...
Edexcel IGCSE Chemistry 复习笔记 1.1.3 Solutions Solutions Terminology You need to know all the following terms used when describing solutions: Terminology About Solutions Table 转载...
Edexcel IGCSE Biology 复习笔记 1.1.2 Diffusion & Dilution Diffusion & Dilution Diffusion and dilution experiments support a theory that all matter (solids, liquids and gases) is made...
