EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：2.3.4 Carbon Dioxide from Thermal Decomposition Carbon Dioxide from Thermal Decomposition Thermal decomposition?is the term used to describe...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：2.3.3 Combustion Combustion Combustion?is the scientific word for burning All combustion reactions involve a chemical change in which oxygen...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：2.3.2 Practical: Determine the % of Oxygen in Air ractical: Determine the Percentage of Oxygen in Air Aim: To determine the percentage of oxygen in...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：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 o...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：2.2.1 Group 7 (Halogens) Physical Properties The elements in group 7 are known as the halogens These are fluorine, chlorine, bromine, iodine...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：2.1.1 Group 1 (Alkali Metals) How Alkali Metals React with Water The group 1 metals are known as the alkali metals They form?alkaline soluti...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：1.7.4 Giant Covalent Structures Giant Covalent Structures Covalent bonding can be responsible for substances that have many different struct...
作為頂級媒體，紐約時報關注到學生寫作的重要性，并在全年推出一系列寫作學術活動供學生們選擇參加。每位“小作家”都能在含金量極高的紐約時報寫作學術活動中找到適合自己的類別。 11月份即將開始的是紐約時報系列...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：1.7.3 Simple Molecular Structures Simple Molecular Structures Simple molecular structures have covalent bonds joining the atoms together, bu...
