Chemistry

What is Chemistry?

Chemists focus on the smallest particles of the substances concerned: the atoms and molecules. But what does a chemist do and what exactly does chemistry involve? When you think of chemistry, you quickly envision a clinical laboratory setting. People in long white coats bend over steaming glass measuring cups with their oversized goggles. Around them are large machines and dozens of microscopes. But what exactly is chemistry? In this blog we give you all the answers. From alchemy to chemistry Chemistry was first mentioned in 1661 . Robert Boyle, an Irish alchemist, then  stated in his scientific writing  that a distinction had to be made between alchemy and chemistry.   Alchemy can be seen...

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What is the difference between physics and chemistry?

Lab coats, experiments and complicated calculations… Physics and chemistry have quite a bit in common. Yet they are two completely different subjects. Read more about it in this blog. What is the difference between physics and chemistry? In this blog we take a good look at both subjects. We go deeper into the separate courses and also tell you what the differences and similarities are. Chemistry subject In chemistry it is mostly about chemical reactions. You investigate processes in which new substances are formed from starting materials. A well-known example is the combustion of natural gas. The substances natural gas and oxygen are converted into carbon dioxide and water. Chemists...

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Where does your teacher get chemistry exam papers from?

School exams, you know them by now. Those tests that officially count towards your diploma are often much harder in your exam year than before. Unlike the central final exam, school exams are not made by the government, but by your teacher. This is a new challenge for every teacher every year: what should you ask and how do you arrive at those assignments? Why most teachers don't come up with the school exam assignments themselves Your teacher can design the exercises himself or with colleagues, but it takes a lot of time to do it right. The exercises can be too difficult, too...

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6 applications with dewatering water

Dewatering water is a versatile product. The applications of dewatering water are not known to everyone. In this blog we explain what you can use the water for. What exactly is dewatering water? Dewatering water consists mainly of water mixed with a small amount of oxalic acid. Oxalic acid is a relatively mild acid and is also known as acid acid. The pure anhydrous substance occurs as a white crystalline powder. The acid is sparingly soluble in water. In nature, this acid occurs in, among others: rhubarb, cocoa, nuts, berries, beets, spinach and purslane. Dewatering water has just the right ratio of water to oxalic acid. It is ready...

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Cleaning with chlorine; only for pools?

Most people associate the smell of chlorine with a swimming pool. That is not surprising, because chlorine is used in almost all pools. Only you can do a lot more with chlorine. What exactly? I'll explain that to you later in this blog. What exactly is chlorine? Chlorine is not a naturally occurring free substance. The substance is quite common in certain compounds such as table salt. Chlorine is therefore frequently extracted from salt (sodium chloride) by electrolysis. At room temperature, chlorine is a very toxic yellow/green gas. Chlorine is widely used in the chemical industry for all kinds of applications as well as in general chemistry textbooks. After...

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History of Chemistry

With the thick book “History of chemistry” the author takes the reader on an interesting journey through the fascinating history of chemistry through the ages. In addition to the very valuable and extremely instructive facts from the challenging field of Chemistry, the book features a thousand pictures of stamps. Each colorful stamp is related to a specific part of the world of chemistry. The author has been able to strike an excellent balance between events and facts from science, coincidences, research, technology, inventions and techniques and practical applications of all forms in which chemistry has developed and artfully illustrate it with the...

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This is how you nail a (chemistry) practical!

There are two kinds of people in a lab: nerds who know exactly what they are doing and students who still wonder whether or not they can heat a plastic test tube over a burner. Do you belong to the latter group, or do you just want a higher grade for your practical? Then I have five super handy practical tips for you. If you have biology, chemistry or physics in your package, you are guaranteed to have to do a lab at some point. At my school, the practicals are often messy and chaotic. Such a shame, because personally I find a practical...

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Chemistry exam tips

The month of May is already peeking around the corner and that only means one thing: final exams. Whether you've been blocking for weeks or it's going to be last-minute work again, YakiBooki.com is happy to lend a hand. That is why we have collected super handy exam tips for each subject. Print them in your head and you will soon walk into that sports hall full of confidence! Tip 1: Draw up reaction equations step by step Writing reaction equations: It's an important and common part of chemistry on your exam. The trick is only to do it right, otherwise you can lose...

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Homeopathy in a chemistry book

Homeopathy in a chemistry book

According to a widely used chemistry textbook for 3 VWO, homeopaths can increase the potency of a medicine by diluting it strongly. This also allows them to prevent the drug from having harmful side effects, as is common with 'allopathy'. In the November issue of the journal NVOX (2009), the publisher promised that such and other statements about homeopathy will be critically examined in a subsequent edition of the book. However, not much has changed on the accompanying website, which does not have to wait for a new print. What is the case? Recently I studied Chemistry everywhere for 3 pre-university education, one of the...

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Tips, this is how you study for your chemistry exams

Before you know it, the time has come: the exam period. Spending a few weeks for tough exams and then anxiously waiting to see if you passed. An exciting time! Of course, studying for exams isn't the easiest thing to do , and that's why I've figured out what can make it easier for you . Doesn't matter its biology or chemistry, Good preparation is half the battle, right?   Make a plan Perhaps the most important preparation for your exams: making a plan. By making a schedule you ensure that you do not run out of time. As long as you stick to it of course! Start planning on time and check carefully how...

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