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Chemistry Tuition Singapore Secondary Science Tuition – Atoms. Ions and Molecules   IONS All atoms are electrically neutral. They have equal number of protons and electrons. When an atom loses or gains electrons, the number of protons is not equal to the number of electrons Therefore, the atom will not be electrically neutral. When an atom is not electrically neutral, it is called an   There are two types of ions: If an atom loses electron(s), it becomes a positive ion.  If an atom gains electron(s), it becomes a negative ion In the formation of ions, the process only involves the gaining or losing Therefore, electrons are responsible for chemical properties of an atom. The number of protons and neutrons remains the same. Therefore, proton number and mass number are not aff ...

Biology Tuition Singapore A Level H2 H1 Biology Tuition – ISOLATION CLONING SEQUENCING DNA-Preparation of Genomic DNA   Assume that you are trying to insert a gene into a plasmid. Someone gives you a preparation of genomic DNA that has been cut with restriction enzyme X. The gene you wish to insert has sites on both ends for cutting by restriction enzyme Y. You have a plasmid with a single site for Y, but not for X. Your strategy should be A insert the fragments cut with X directly into the plasmid without cutting the plasmid B cut the plasmid with restriction enzyme X and insert the fragments cut with Y into the plasmid C cut the DNA again with restriction enzyme Y and insert these fragments into the plasmid cut with the same enzyme D cut the plasmid twice with restriction enzy ...

Economics Tuition Singapore A Level H2 H1 Economics Tuition – Fears are growing that the UK   Fears are growing that the UK is running the risk of a period of painful “stagflation” – the toxic cocktail of stagnating growth, high unemployment and rising prices Discuss whether the Singapore government should focus more on achieving low unemployment or price stability.   Introduction  Every government has four macroeconomic objectives that it seeks to achieve, i.e. sustained economic growth, low unemployment, low inflation and a healthy balance of payments. Clarify key terms: Price stability Low unemployment  Body  Singapore government should focus more on achieving price stability compared to low unemployment rate. External Benefit – Improvement in balance of payments       P ...

General Paper Tuition Singapore A level General Paper Tuition Is sport overly concerned with achievements?   Topic: Sport Issue: Is sport obsessed with achievements Context: Global Keywords: Achievement, Overly concerned   Define Keywords Overly concerned –  over emphasis on Students must show that there is too much emphasis on achievements Achievements –  Act of attaining or accomplishment Winning Sport Students must use examples from various sports.   Sport is overly concerned with achievements   Funding is only allocated for Sports which do well (Win many trophies) In many countries, government funding is only allocated for Sports and athletes who have a history of winning medals. Singapore rower, Saiyidah Aisha did not receive funding from the government until ...

Math Tuition Singapore A Level H2 H1 Math Tuition – Vectors Lines      Please contact Angie @ 96790479 or Mr Ong @ 98639633 if you need Mathematics Tuition Singapore A Level H2 H1 Math Tuition