CIE A Level Chemistry复习笔记1.3.1 Electronegativity
Electronegativity: Definition Electronegativity is the ability of an atom to attract a pair of electrons towards itself in a covalent bond This phenomenon arises from the positive nucleus’s ability...
CIE A Level Chemistry复习笔记1.2.7 Reacting Masses & Volumes
Mole Calculations The number of moles of a substance can be found by using the following equation: It is important to be clear about the type of particle you are referring to when dealing with mole...
澳大利亚八大名校A-Level申请要求汇总
作为英联邦国家，用A-Level成绩申请澳洲大学很有优势。澳洲八大名校对于A-Level的成绩要求比高考成绩要宽松很多，升读名校更容易。 澳大利亚八校联盟（Group of Eight，简称Go8或G8），又称澳大利亚八大名校、澳...
CIE A Level Chemistry复习笔记1.2.6 Water of Crystallisation
Water of Crystallisation Water of crystallisation is when some compounds can form crystals which have water as part of their structure A compound that contains water of crystallisation is called a ...
CIE A Level Chemistry复习笔记1.2.5 Empirical & Molecular Formulae
Empirical & Molecular Formulae The molecular formula is the formula that shows the number and type of each atom in a molecule Eg. the molecular formula of ethanoic acid is C2H4O2 The empirical ...
CIE A Level Chemistry复习笔记1.2.4 Balancing Equations
Balancing Equations A symbol equation is a shorthand way of describing a chemical reaction using chemical symbols to show the number and type of each atom in the reactants and products A word equat...
CIE A Level Chemistry复习笔记1.2.3 Formulae
Formulae of Ionic Compounds Ionic compounds are formed from a metal and a nonmetal bonded together Ionic compounds are electrically neutral; the positive charges equal the negative charges Charges ...
CIE A Level Chemistry复习笔记1.2.2 The Mole & 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...
CIE A Level Chemistry复习笔记1.2.1 Relative Masses
Relative Masses Atomic Mass Unit The mass of a single atom is so small that it is impossible to weigh it directly Atomic masses are therefore defined in terms of a standard atom which is called the...
