IB DP Chemistry: HL复习笔记9.1.6 The Activity Series
The Activity Series Metals can be ranked in order of reactivity -this is called the reactivity series or just activity series Metals higher in reactivity can displace less reactive metals from thei...
IB DP Chemistry: HL复习笔记9.1.5 Half Equations
Half Equations Oxidation numbers can be used to balance chemical equations Go through these steps to balance a redox equation: Write the unbalanced equation and identify the atoms which change in o...
IB DP Chemistry: HL复习笔记9.1.4 Naming Transition Metal Compounds
Naming Transition Metal Compounds Transition metals are characterized by having variable oxidation numbers. Oxidation numbers can be used in the names of compounds to indicate which oxidation numbe...
IB DP Chemistry: HL复习笔记9.1.3 Oxidizing & Reducing agents
Oxidizing & Reducing Agents Oxidising agent An oxidising agent is a substance that oxidises another atom or ion by causing it to lose electrons An oxidising agent itself gets reduced – gains el...
IB DP Chemistry: HL复习笔记9.1.2 Deducing Oxidation Numbers
Deducing Oxidation Numbers The oxidation numbers of all other atoms in their compounds can vary By following the oxidation number rules, the oxidation number of any atom in a compound or ion can be...
IB DP Chemistry: HL复习笔记9.1.1 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...
IB DP Chemistry: HL复习笔记8.3.3 Reducing Sulfur Oxide Emissions
Reducing Sulfur Oxide Emissions The removal of sulfur from fossil fuels can either take place pre-combustion or post-combustion The oxides of sulfur, SO2 and SO3, are both acidic and toxic gases S...
IB DP Chemistry: HL复习笔记8.3.2 Effects of Acid Deposition
Effects of acid deposition Effect on materials Acid deposition can react with metals and rocks (such as limestone) causing buildings and statues to get damaged The impact of acid deposition can be ...
2022年A-Level秋季重考指南！
夏季大考即将放榜。但是如果放榜后，对自己的成绩不满意，也不用就此摆烂，下半年的A-Level考试还可以选择重考，通过参加秋季考试来刷新成绩。 那么，重考对于申请是否有影响？重考有什么规则？接下来，带大家来...
