AQA A Level Chemistry復習筆記1.3.4 The Ideal Gas Equation
The Ideal Gas Equation Kinetic theory of gases The kinetic theory of gases?states that molecules in gases are constantly moving The theory makes the following assumptions: That gas molecules...
AQA A Level Chemistry復習筆記1.3.3 Reacting Volumes
Volumes & Concentrations of Solutions The?concentration?of a solution is the amount of?solute?dissolved in a?solvent?to make 1 dm3?of??solution The solute is the substance that dissolves...
AQA A Level Chemistry復習筆記1.3.2 Reacting Masses
Reacting Masses 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 deali...
AQA A Level Chemistry復習筆記1.2.6 Hydrated Salts
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 ca...
AQA A Level Chemistry復習筆記1.2.5 Atom Economy
Atom Economy The atom economy of a reaction shows how many of the atoms used in the reaction become the desired product The rest of the atoms or mass is wasted It is found directly fr...
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想了解一所學校的學術排名 一定不要錯過URAP的 世界大學學術排名！ 這份最近出爐的名單里 華大學術能力碾壓清華？ 前十名的學校究竟有多牛？ 這篇文章告訴你~ 前言 隨著全球化推動了研究與開發各方面的快速變化，...
AQA A Level Chemistry復習筆記1.2.4 Reaction Yields
Percentage Yield In a lot of reactions, not all reactants react to form products which can be due to several factors: Other reactions take place simultaneously The reaction does not go to?co...
AQA A Level Chemistry復習筆記1.2.3 Balanced Equations
Deducing Formulae of Compounds Ionic?compounds?are formed from a?metal?and a?non-metal?bonded together Ionic compounds are electrically neutral; the positive charges equal the negative charg...
2022美國本科和研究生學費最便宜的大學排名
付不起高昂的學費 但又不想放棄出國留學機會？ 別擔心—— 快來看看2022年美國本科&研究生 學費最低的大學吧 根據移民政策研究所的數據，在2019-2020學年之間，約有110萬名國際學生在美國的大學和小型文理學院...
AQA A Level Chemistry復習筆記1.2.2 Empirical & Molecular Formula
Empirical & Molecular Formulae The?molecular?formula?is the formula that shows the?number?and?type?of each atom in a molecule E.g. the molecular formula of ethanoic acid is C2H4O2 ...
AQA A Level Chemistry復習筆記1.1.7 Ionisation Energy: Trends & Evidence
Ionisation Energies: Equations The?second ionisation energy?(IE2) is the energy required to remove the second mole of electrons from each +1 ion in a mole of gaseous +1 ions, to form one mol...
AQA A Level Chemistry復習筆記1.1.6 Ionisation Energy
Ionisation Energies The?Ionisation?Energy?(IE) of an element is the amount of energy required to remove?one mole?of electrons from?one mole?of gaseous atoms of an element to form?one mole?of...
