EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.7.2 Flame Tests Flame Tests Metal ions produce a colour if heated strongly in a flame Ions from different metals produce different colours...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.7.1 Tests for Gases Tests for Gases Many reactions in the lab produce gases which then need to be tested The table below indicates ...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：2.6.6 Practical: Prepare Copper(II)Sulfate Practical: Prepare Copper(II)Sulfate Aim: To prepare a pure, dry sample of hydrated copper(II) sulfate c...
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+)...
