IB DP Chemistry: SL復習筆記9.1.9 Voltaic Cells
Voltaic Cells Voltaic (or Galvanic)?cells generate electricity from spontaneous redox reactions For example: Zn (s)? + CuSO4?(aq)→ Cu (s)? + ZnSO4?(aq) Instead of electrons being transferred direct...
IB DP Chemistry: SL復習筆記9.1.8 The Winkler Method
The Winkler Method The?Winkler Method?is a technique used to measure dissolved oxygen in freshwater systems Dissolved oxygen is used as an indicator of the health of a water body, where higher diss...
IB DP Chemistry: SL復習筆記9.1.7 Redox Titrations
Redox Titrations In a?titration, the concentration of a solution is determined by titrating with a solution of known concentration. In redox titrations, an?oxidizing agent?is titrated against a?red...
IB DP Chemistry: SL復習筆記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: SL復習筆記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: SL復習筆記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: SL復習筆記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: SL復習筆記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: SL復習筆記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: SL復習筆記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: SL復習筆記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 ...
城市綠洲學校插班生超級難考嗎？
深圳城市綠洲學校是創(chuàng)辦于2001年的民辦九年一貫制雙語學校，2008年成立了國際部。城市綠洲學校也是目前深圳唯一一所可以直升深國交的學校！城市綠洲學校插班生超級難考嗎？ 招生對象 中（含港澳臺）外籍學生，招...
