Edexcel IGCSE Chemistry 复习笔记 2.4.1 Metals Reacting with Water & Acids Metals Reacting with Water & Acids The chemistry of the metals is studied by analysing their reactions with ...
Edexcel IGCSE Chemistry 复习笔记 2.3.5 The Greenhouse Effect The Greenhouse Effect When shortwave radiation from the sun strikes the Earth’s surface it is absorbed and re-emitted from the su...
Edexcel IGCSE Chemistry 复习笔记 2.3.4 Carbon Dioxide from Thermal Decomposition Carbon Dioxide from Thermal Decomposition Thermal decomposition is the term used to describe reactions where ...
Edexcel IGCSE Chemistry 复习笔记 2.3.3 Combustion Combustion Combustion is the scientific word for burning All combustion reactions involve a chemical change in which oxygen reacts with elem...
Edexcel IGCSE Chemistry 复习笔记 2.3.2 Practical: Determine the % of Oxygen in Air Practical: Determine the Percentage of Oxygen in Air Aim: To determine the percentage of oxygen in air using the o...
Edexcel IGCSE Chemistry 复习笔记 2.3.1 Composition of Air Composition of Air The proportion of gases in the air has not changed much in 200 million years About four fifths of the air is nitr...
Edexcel IGCSE Chemistry 复习笔记 2.2.2 Group 7: Reactivity & Electronic Configurations Group 7: Reactivity & Electronic Configurations When halogen atoms gain an electron during reac...
Edexcel IGCSE Chemistry 复习笔记 2.2.1 Group 7 (Halogens) Physical Properties The elements in group 7 are known as the halogens These are fluorine, chlorine, bromine, iodine and astatine &nb...
Edexcel IGCSE Chemistry 复习笔记 2.1.2 Group 1: Reactivity & Electronic Configurations Group 1: Reactivity & Electronic Configurations The reactivity of the group 1 metals increases ...
