EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.6.1 Solubility Rules Solubility Rules Ionic compounds are generally soluble in water compared to covalent substances, but there are except...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.5.2 Acids, Alkalis & Neutralisation Acids & Alkalis When acids are added to water, they form positively charged hydrogen ions (H+)...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.5.1 Indicators Two Colour Indicators Two colours indicators are used to distinguish between acids and alkalis Many plants contain substanc...
Homeostasis: An Overview In order to function properly and efficiently organisms have different control systems that ensure their internal conditions are kept relatively constant Physiological cont...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.4.6 Practical: Investigate Metals Reacting with Acids Practical: Investigate Metals Reacting with Acids Aim: To investigate the reactions between...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.4.5 Oxidation & Reduction Oxidation & Reduction Oxidation & reduction in terms of oxygen The reactions of metals with oxygen, such as...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.4.4 Rusting of Iron Rusting of Iron Rusting is a chemical reaction between iron, water and oxygen to form hydrated iron(III)oxide Oxygen a...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.4.3 Order of Reactivity Order of Reactivity Carbon and the reactivity series mnemonic Carbon is an important element and has its own place...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.4.2 Metal Displacement Reactions Metal Displacement Reactions The reactivity of metals decreases going down the reactivity series. This me...
