Interpreting a Mass Spectrum Mass spectroscopy?is an analytical technique used to identify unknown compounds The molecules in the small sample are?bombarded?with high energy electrons which ...
Elimination Reactions Elimination Reaction of Alcohols Alcohols can also undergo?dehydration?to form alkenes This is an example of an elimination reaction Elimination reactions involve a sma...
Combustion of Alcohols Combustion of alcohols Alcohols react with oxygen in the air when ignited and undergo?complete combustion?to form carbon dioxide and water alcohol + oxygen → carbon di...
申請英本直升，一般最晚需要在當年6-7月前提供最終雅思成績，因為若不能及時提供合格雅思成績，便無法換取無條件offer。比如，LSE需要學(xué)生在7.31之前遞交語言成績。 眼看著DDL越來越近，然而一些手握offer的A2同...
Oxidation of Alcohols Oxidation of alcohols Primary alcohols can be oxidised to form?aldehydes?which can undergo further oxidation to form?carboxylic?acids Secondary alcohols can be oxidised to for...
Alcohol Production Alcohols?are compounds that contain at least one?hydroxy?(-OH) group The general formula of alcohols is?CnH2n+1OH Alcohols can be prepared by a wide range of chemical reac...
Disposing of Polymers Though poly(alkenes)s are extremely important in everyday such as their use as?plastics, the disposal of these polymers is problematic Poly(alkenes) are very large alka...
Addition Polymers Addition polymerisation Addition polymerisation?is one of the most important addition reactions of alkenes which form the basis of the plastics industry Addition polymerisa...
Test for Unsaturation Halogens can be used to test if a molecule is?unsaturated?(i.e. contains a double bond) Br2(aq) is an orange or yellow solution, called?bromine water?and this is the ha...
ISSCY 聯(lián)合國協(xié)會寫作比賽 是一項針對全球高中生的研究型寫作學(xué)術(shù)活動，為了促進世界各地中學(xué)生對人文和社會科學(xué)的研究，ISSCY邀請年輕思想者將他們的研究論文提交評審委員會審議。 學(xué)生將提交初賽建議，如果被選...
Alkenes: Reactions Alkenes are very useful compounds as they can undergo many types of reactions They can therefore be used as starting molecules when making new compounds Electrophilic addi...
Isomerism in Alkenes Unsaturated compounds In unsaturated compounds, the groups attached to the C=C carbons remain fixed in their position This is because free rotation of the bonds about th...
