Hybridization It is one of the most mysterious concept to the JC chemistry students. This is a concept that is mainly for carbon atom. Some colleges teach it under chemical bonding, others teach it during introduction to organic chemistry. No matter where it's taught, it would be good if you understand what is the main idea here. Main Gist Hybridization is simply mixing of atomic orbitals, notably the s and p orbitals for carbon. 1 s + 1 p = two sp hybrid orbitals     => shape: linear (180 bond angle) 1 s + 2 p = three sp^2 hybrid orbitals   => shape: trigonal planar (120 bond angle) 1 s + 3 p = four sp^3 hybrid orbitals   => ...
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Consciousness  "If all the good in this universe were to be poured out on us, we could only receive these blessings to the extent that we are conscious of it." Think about it for a moment. Sometimes we are just not at the level to receive all the blessings God has for us. It isn't because we are not blessed, rather it's because we are not AWARE. Imagine this, i give my son a thousand dollars cash. He laughs and throws the dollar bill away. Is it a good gift? Yes, he can probably buy a lot of things with it BUT he is not at the maturity where he can understand it. Conversely, when presented with just a $1 ...
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/ / Life As An Ex-Teacher
Instagram and mrkhemistry
Instagram @mrkhemistry Welcome to the world of #filters and #hashtags! Just starting to use it again after many years. Amazed at what filters can do now. Amazed at how much it has evolved over the years. It's a lot "cooler" to be on the Gram than on FB. Our official instagram account has one goal: To reach out to as many H2 Chemistry students as possible,  to give them great quality chemistry resources to aid their learning. We are posting concise topical summaries, concept maps for various organic functional groups, funny chemistry memes and even inspirational quotes Hope to make learning chemistry fun again. #chemisfun If you are on Instagram, follow us @mrkhemistry! Back to Singapore's Best Chemistry Tuition ps: ...
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Classes start at Hougang Central
Hi all, Mr Khemistry has collaborated with The Classroom to offer to you Chemistry Classes from Sec 3 to JC 2! Classes for JC 1 has started on tuesday and JC 2 has started on wednesday. For details of Secondary classes, please click on https://theclassroom.com.sg/schedule/ For JC schedule, please click on http://mrkhemistry.com/class-schedule/ Watch this space for more updates! Back to home of Top Chemistry Tuition ...
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Teaching helps us learn
Teaching helps us learn Teaching helps us learn Read this from a website "Looking at text and expecting to learn is not far off from looking at food and expecting to get its nutrients. We need to digest our life experiences just like we digest our food." This made perfect sense. I have been telling my students the best way to remember the information is to TEACH others. Because i've applied this knowledge umpteen times, i know it works! If you haven't been sharing your knowledge, start today! Back to home of Leading Chemistry Tuition ...
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JC students profile
JC Students batch profile JC Students - Every batch has their unique profile. For example, 2020 batch are significantly more enthusiastic and open to new ideas/concepts. Every teacher knows that teaching an enthusiastic class rubs off positively on our own energy. We feel the positive vibrations from the students and that in turns injects energy into our teaching. When you know that students are interested and learning well, something inside you fires up 🙂 Hope this will be a virtuous cycle for 2020 and 2021, that everyone is excited to learn new things and grow. How has your 2020 been shaping up? Back to home of Top Chemistry Tuition Centre ...
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Time – Our Most Precious Commodity
Time This post is dedicated to all JC 2 students and to my ex-principal. Time - CNY is now over, JC 1 orientation is over, March Block Test is just around the corner. One of the traits of successful people is they plan ahead, way ahead. Today, we want to look ahead to the rest of the year to see if we are on the right track, specifically whether we have enough time. During term time we are learning new content and doing tutorials. However, during the 'A' division competition period from Mar-May, sometimes CCA trainings are so intense, there's even no time to do tutorials! Major school holidays, March/June/Sept. Total of 6 weeks. Assuming you study Chemistry everyday for ...
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/ / Time Table
Dettol disinfectant spray
Dettol disinfectant spray Dettol disinfectant spray - Can it kill the novel corona virus? Chloroxylenol, also known as para-chloro-meta-xylenol (PCMX), is an antiseptic and disinfectant which is used for skin disinfection and cleaning surgical instruments. It is also used within a number of household disinfectants and wound cleaners. It is sold in a number of formulations and under a number of brand names including Dettol. (Source: Wikipedia) Dettol's company RB, has clarified that it does not have access to this new corona virus and therefore have not done testing on it before. So that is no evidence that it can kill the virus. It can probably kill flu virus which has been tested before. But this doesn't stop us from spraying it over common areas, cutting down the amount of germs ...
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