Best Chemistry Tuition in Singapore

Now that the will to start Chemistry Tuition Singapore home school your child has been resolved, get ready for a few serious anxiety and also the exaltation you get from it. the road forward will very get rough however the advantages that accompany it over produce up for the difficulty. The act of generating a all-around and a adjusted character by all suggests that not forever straightforward. Before you start, examine what the laws that controls educations says in your nation. Some nations can demand that your file Associate in Nursing testimony with the coaching and learning divisions. Generally, there area unit 3 teams of Chemistry Tuition Singapore house tutorial prices laws; we've non-public University Laws, Equivalency laws and residential Education Laws. you'll be needed to keep up a profile that maintains info of your kid's tutorial improvement. it's of a important significance to seem into the law before you act with on that. several nations states a lowest tutorial certification for the mother or father or the-would be pedagogue, this can be ordinarily at the smallest amount university education and learning for primary kids.

Another factor that ought to be researched is a few method of Associate in Nursing help team. Associate in Nursing help team involve like orientated folks that can shield you from the uncalled for critique, stress and queries from the regular college guests. several Chemistry Tuition Singapore teams organize activities like visits to the menagerie, room, visits to ice lotion stores and alternative fun activities. If your child hit it off with alternative youngsters taking house tutorial prices, then they'll be able to A sturdy association that doesn't disappear once their alternative alternatives modification college. The teams offer a way needed coming together chance for your child. After you have got set the info, tips should be set. Home coaching wants lots of effort and self-discipline. Below is an intensive list of things that may info you.

These are:
 I. tough perform and energy
 ii. Passion to grasp new things
 iii. Discipline
 iv. Tolerance and enough time
 v. skillfulness and enthusiasm

 The other terribly essential purpose to require Chemistry Tuition Singapore concern is to think about why you're selecting house tutorial prices for your child. Your functions and reasons for beginning your child on house coaching is that the terribly principal on that the full informative coaching for child depends on. additionally it's a lot of counseled to hunt recommendation from your child before you start it. raise them however they feel concerning house tuition.

Reactivity of Metals

Chemistry tuition classes in Miracle Learning Centre is very useful. If you do not understand chemistry, you must definitely attend the chemistry tuition class at Miracle Learning Centre. Let us learn about reactivity of metals in this chemistry tuition lesson.

Your chemistry tuition teacher at Miracle Learning Centre will teach you about the reactivity of metals. The reactivity series lists metals from the most reactive to the least reactive. The list goes like this: potassium, sodium, calcium, magnesium, aluminium, zinc, iron, tin, lead, hydrogen, copper, silver, gold. This list is not exhaustive. Just by looking at this list, can you tell why copper, silver and gold are common metals that we see every day but we do not come into contact with potassium or sodium.

This is because sodium and potassium are very reactive metals. When they are exposed to air, they undergo a vigorous reaction with oxygen in the air. Hence they are stored under oil. These reactive metals are stable as compounds. That is why we are so familiar with our common table salt, sodium chloride. Compounds of reactive metals are very stable.

Silver and gold are less reactive metals and hence they can be used to make jewellery because of their shiny appearance. Since they are less reactive, it is safe for anyone to wear it. On the other hand, compounds of silver and gold are unstable and tend to react easily.

The student at Miracle Learning Centre asked, " Which reaction is more likely to happen: sodium oxide with carbon or copper(II) oxide with carbon? " The chemistry tuition teacher at Miracle Learning Centre replied, " From what i taught you earlier, are you able to deduce the answer? The answer is copper(II) oxide is more likely to react with carbon. This is because compounds of less reactive metals are more reactive. Compounds of very reactive metal are more stable."
Miracle Learning Centre hope you have understood the reactivity of metals and how it helps you to answer chemistry tuition questions. Do come to Miracle Learning Centre for more chemistry tuition lessons to learn more about reactivity of metals and chemistry.

What is Heavy Water?

We are back with another exciting story for your chemistry tuition. Your chemistry tuition can come up with interesting facts about chemistry. Everyone of you knows about water. We know that ordinary water, the one we use every day is composed of two molecules of hydrogen and one molecule of oxygen and can be symbolized by H2O, it’s chemical formula. But, have you got any idea about heavy water? Today in your chemistry tuition we will talk about heavy water. In heavy water the hydrogen of ordinary water gets replaced by deuterium, which is an isotope of hydrogen. It has the chemical formula D2O. In fact, hydrogen has three isotopes: Protium (ordinary hydrogen), deuterium (heavy hydrogen) and the third one being tritium. The nucleus of Protium has only one proton, whereas the nucleus of deuterium possesses one proton and neutron each. Subsequently, the nucleus of tritium contains two neutrons, along with the single proton. In nature 99.85% of hydrogen belongs to protium and only about 0.015% as deuterium. The tritium is present is trace amounts in naturally occurring hydrogen (1 part in 107) and is a radioactive compound. Heavy water (deuterium oxide) is produced due to a combination of deuterium with oxygen.

In natural sources of water for every 6760 parts of ordinary water, there exists one part of heavy water. The molecular weight of H2O is 18 while that of D2O is 20. The density, boiling and freezing point of D2O are higher than that of H2O.

Harold Clayton Urey, an American Chemist discovered D2O in 1931 and got the Nobel Prize in chemistry for his work in 1934. A few millilitres of pure heavy water were prepared by Lewis and Donald in 1933 by constant electrolysis of water for a long duration. Electrolysis of ordinary water for prolonged period gives rise to heavy water as the gas produced during electrolysis in cathode is pure hydrogen and the residual water present in the solution is deuterium oxide. It can be produced at an industrial scale.
Heavy Water is specifically used in nuclear reactors as moderator to slow down the fast moving neutrons. In laboratories, it can be used as an isotopic tracer and in deuterium and other compound preparation.

We hope you enjoyed this lesson from chemistry tuition. We will be back with more such interesting findings in our next chemistry tuition.

Best Chemistry Tuition in Singapore

Miracle Learning Centre Pte Ltd is conveniently located in Bukit Timah, and started in 2008 as a centre specializing in Mathematics and Science. Because we were founded with one simple aim – “achieving excellence in mathematics and science”, we have been able to stay focused, and deliver consistent results. We must be doing something right! Miracle Learning Centre Pte Ltd is the BEST centre in Singapore offering Chemistry Tuition. All the students who come to MIRACLE for Chemistry have given us OUTSTANDING testimonials as they have improved drastically not just in their grades but also in their UNDERSTANDING of Chemistry. They also begin to LOVE Chemistry which used to be their most hated subject.

What is a catalyst?

Your chemistry tuition is back with another interesting story as always. Do you know about catalysts? Your chemistry tuition will give you some interesting information on catalysts. A catalyst can be regarded as a material that can alter a chemical reaction rate, merely by its presence and without undergoing any change itself. This process is known as catalysis.
Catalysts are of several types, but are mainly classified in two categories: positive and negative. The positive catalysts are those substances that increase the speed of a chemical reaction while the negative catalysts retard it. For example, when potassium chlorinate is heated to about 400oC, oxygen is evolved but when the manganese dioxide is added to it oxygen is evolved only at 200oC. Manganese dioxide acts as a positive catalyst in this reaction. On the other hand, Gypsum which is added to Portland cement to slow down the hardening process acts as a negative catalyst. In some chemical reaction, the product itself acts as a catalyst. This is called auto catalysis. For example, the decolonization of potassium termagant solution by oxalic acid is very slow in the beginning, but once it starts, it becomes very fast. This is due to the fact that Mn2+ ions act as auto catalyst.
If the catalyst and the reactants are present in the same phase, then the catalysis are called homogeneous catalysis. But if they belong to different phases, then it is known as heterogeneous catalysis.

So how does a chemical substance increases the rate of a reaction simply by its presence?

Catalysts may work in two ways. Surface or contact catalysts work by adsorption. The reacting chemicals are adsorbed to form a concentrated layer at the surface of the catalyst. Due to this the chemicals react more quickly. For example, hydrogen and oxygen combine at the surface of powdered platinum to make water.
According to another theory, a catalyst forms an unstable intermediate compound with one of the reactants. This compound reacts with other reactants more quickly forming the final product. At the end, the catalyst is recovered in the original state by different chemical methods.
Catalysis is very important for the production of plastics, rubber, gasoline, oils, fats, sulfuric acid and ammonia. Catalytic reactions also occur in our body. Enzymes act as catalyst to enhance the digestion process. Enzymes also increase the rate of various processes in the cells of plants and animals. We hope you enjoyed this lesson from chemistry tuition. We will be back with more such interesting findings in our next chemistry tuition.

Best Chemistry Tuition in Singapore

Miracle Learning Centre Pte Ltd specialises in Science and Mathematics. Other than Chemistry, Physics is another Science subject that Miracle is strong in. Chemistry concepts are not easy to explain and not all teachers can explain well. Chemistry concepts are not easy to explain and not all teachers can explain well. All our Chemistry teachers are NIE trained, ex-school teachers who explain concepts very clearly and are able to give examples to elaborate the Physics concept. Chemistry teachers need to be very well versed in the subject to be able to explain the subtle differences in the topic. They will also highlight what to take note of and to be precise in your answers and calculations.