EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.6.5 Prepare a Soluble Salt Prepare a Soluble Salt A soluble salt can be made from the reaction of an acid with an insoluble base During th...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.6.4 Bases Bases What makes a base act like a base? Bases are substances which can neutralise an acid, forming a salt and water The term ba...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.6.3 Reactions of Acids Reactions of Acids Reactions of acids with metals Only metals above hydrogen in the reactivity series will react wi...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.6.2 Acids, Bases & Protons Acids, Bases & Protons Proton transfer The earlier definition of an acid and a base can be extended In ...
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...
