CIE A Level Chemistry復習筆記1.4.1 Gas Pressure
Gases: Gas Pressure Gases?in a container exert a?pressure?as the gas molecule are constantly?colliding?with the wall of the container Gas particles exert a pressure by constantly colliding with the...
CIE A Level Chemistry復習筆記1.3.16 Dot-&-Cross Diagrams
Dot & Cross Diagrams Dot and cross diagrams?are diagrams that show the arrangement of the outer-shell electrons in an?ionic?or?covalent?compound or element The electrons are shown as dots and c...
A-Level夏季大考放榜，A-Level考試申訴、補錄、重考流程解析
A-Level大考今日放榜，同學們可以抓緊時間查詢自己的分數(shù)。出分后，AS階段的考生若對此次A-Level成績滿意，即可著手準備2023年的留學事宜；A2階段的考生若成績滿足院校申請要求，那么后續(xù)只需等待相應院校的確認...
8月A-Level大考成績放榜，成績公布時間和查分攻略請收好！
此前由于疫情原因，各個國際大考相繼出現(xiàn)考試形式的更改問題，其中個別地區(qū)的A-Level大考就因此轉換為POE或TAG形式，許多同學不免擔憂評估出分會導致高分通脹情況。 同學們的擔憂是否會成為既定事實？相信隨著今...
CIE A Level Chemistry復習筆記1.3.15 Inter & Intramolecular Forces
Comparing Bonds to Intermolecular Forces Intramolecular forces Intramolecular forces?are forces?within?a molecule Ionic bonding?is the?electrostatic attraction?between?positive?(cations) and?negati...
CIE A Level Chemistry復習筆記1.3.14 Van der Waals' Forces
van der Waals' Forces & Dipoles Covalent bonds are strong?intramolecular forces Molecules also contain weaker?intermolecular forces?which are forces?between?molecules These intermolecular force...
CIE A Level Chemistry復習筆記1.3.13 Polarity & Dipole Moments
Polarity & Dipole Moments Electronegativity?is the ability of an atom to draw a pair of electrons towards itself in a covalent bond Electronegativity?increases?across a Period and?decreases?goi...
CIE A Level Chemistry復習筆記1.3.12 Hydrogen Bonding
Hydrogen Bonding Hydrogen bonding Hydrogen bonding?is the?strongest?form of?intermolecular bonding Intermolecular bonds are bonds?between?molecules Hydrogen bonding is a type of?permanent dipole – ...
CIE A Level Chemistry復習筆記1.3.10 Bond Energy & Length
Covalent Bonding: Bond Energy & Length Bond energy The?bond energy?is the energy required to?break?one mole of a particular covalent bond in the gaseous states Bond energy has units of kJ mol-1...
