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Value added O / NA Chemistry tuition by ex-Sec School Teacher

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    Reach your full potential with O / NA Levels Chemistry tuition by ex-Sec School teacher   Why struggle in your chemistry studies? Do you need a grade boost?   Do you want to do well for tests and exams? Do you struggle with large class tuition in tuition centres? Do you need online 1-1 interactive and live tuition or home tuition? 1   You’ve come to the right plac e! My personalized and customised O / NA levels Chemistry tuition is now available in 2021. I was an ex-Sec School tutor, graduated with a NUS Honours degree, along with 20 years of solid experience. I also graduated with a postgraduate diploma in education from NTU - NIE. I was the top student in a top secondary school, achieved 5 distinctions in A levels in a top junior college, and I was in Dean's list in NUS. I was taught by a NUS professor who worked under a Nobel Prize in Chemistry winner. Personalised and individual 1-1 tuition slots are available. For those who are strugg

Ionisation energy of the Periodic Table elements

The first ionisation energy is the energy required to remove one mole of the   valence electrons from one mole of gaseous atoms to produce 1 mole of gaseous ions each with a charge of 1+. This is more easily seen in symbol terms. X -->   X+ + e It is the energy needed to carry out this change per mole of X. Suggest how the ionisation energy changes across Period 3 and down Group VII of the Periodic Table.

Acids and Bases brief notes

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Acids and Bases brief notes which are found from internet. https://drive.google.com/file/d/1poELRNxEVzHVkDs9T01-BWX_X6wr8YTa/view?usp=sharing Sample :

Examiner's tips for Pure Chemistry

EXAMINER TIPS for Pure Chemistry General Advice 1. It is important that you write your answers in black or dark blue ink. This is because the papers are now marked ‘on-line’ by the examiners [note : on trial for some papers].  For a similar reason, please use a dark black pencil for your drawings. 2. It is very important that you understand the words or phrases used by examiners to get you to answer questions in a particular way. These terms are described in the syllabus in the section Glossary of Terms. You may sometimes lose marks because you do not understand what to write in response to the words ‘explain’, ‘describe’, ‘suggest’ etc. If you are unsure, ask your teacher to tell you what each of these terms means. For example the term ‘explain’ means that you have to refer to some idea or theory and you have to write in detail to say why something happens. For example, if you are asked ‘Explain why rate of a chemical reaction increases when the temperature increases’, yo