AQA A Level Chemistry復習筆記1.9.1 Oxidation & Reduction
Oxidation & Reduction There are three definitions of?oxidation?and?reduction? used in different branches of chemistry Oxidation?and?reduction?can be used to describe any of the following proces...
AQA A Level Chemistry復習筆記1.8.1 Chemical Equilibria
Reversible Reactions & Dynamic Equilibrium Reversible reaction Some reactions go to completion where the reactants are used up to form the products and the reaction stops when all of the reacta...
AQA A Level Chemistry復習筆記1.7.1 Collision Theory
Collision Theory Collision theory The?collision theory?states that for a chemical reaction to take place the particles need to?collide?with each other in the correct?orientation?and with enough?ene...
英國私立寄宿學校解讀！
英國教育可以分兩個系統：公立教育和私立教育。這兩種教育主要區別在于， 公立教育系統里學校的財政開支和管理由中央政府或者當地政府進行管控。大部分公立學校為走讀學校， 全英共有39所公立寄宿制學校， 但這些...
2022-23USACO美國計算機奧賽備賽開啟，附歷年真題示例
USACO 美國計算機奧林匹克學術活動 United States of America Computing Olympiad 簡稱USACO，USACO學術活動是美國最具認可度的計算機學術活動，用于選拔美國參加全球信息奧林匹克學術活動（IOI）的國家隊，學術...
AQA A Level Chemistry復習筆記1.6.1 Bond Energy
Bond Energy During a reaction, enthalpy changes take place because bonds are being broken and formed Energy (in the form of heat) is needed to overcome attractive forces between atoms Bond breaking...
AQA A Level Chemistry復習筆記1.5.1 Shapes of Simple Molecules & Ions
Electron Pairs The?valence shell electron pair repulsion theory?(VSEPR) predicts the shape and bond angles of molecules Electrons are?negatively charged?and will repel other electrons when close to...
AQA A Level Chemistry復習筆記1.4.1 Changes in State: Energy Changes
State Changes Changes of state are?physical changes?that are reversible These changes do not change the chemical properties or chemical makeup of the substances involved Vaporization?includes?evapo...
AQA A Level Chemistry復習筆記1.3.1 The Mole & the Avogadro Constant
Mole & Avogadro Constant The?Avogadro constant?(NA?or?L) is the number of particles equivalent to the relative?atomic?mass?or?molecular mass?of a substance The Avogadro constant applies to atom...
