AQA A Level Chemistry復習筆記3.1.1 Functional Groups
Organic Definitions & Terminology Organic chemistry?is the chemistry of carbon compounds Carbon forms a vast number of compounds because it can form strong covalent bonds with itself This enabl...
AQA A Level Chemistry復習筆記2.3.1 Physical Properties of Group 7
Group 7: Physical Properties The group 7 elements are called?halogens The halogens have uses in water purification and as bleaching agents (chlorine), as flame-retardants and fire extinguish...
AQA A Level Chemistry復習筆記2.2.1 Trends in Group 2: The Alkaline Earth Metals
Group 2: Trends Chemical trends All elements in Group 2 (also called?alkali earth metals)?have two electrons in their?outermost principal quantum shell All Group 2 metals can form?ionic?compounds?i...
AQA A Level Chemistry復習筆記2.1.1 Classification of an Element
The Periodic Table: Structure & Classification The?periodic table?is a list of all known elements arranged in order of?increasing atomic number,?from 1 to 118. In addition to this, the elements...
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...
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...
