Chemistry

Every moment of every day, chemistry plays a part in all we experience. This branch of the Helium network humbly attempts to illuminate the vast array of chemical knowledge, making it accessible to all. Let our site inform, inspire, and awe you with chemical wonders.
Explaining how crystals form
By: Minute Major
The significance of crystals in chemistry is often overlooked. Working in an organic chemistry lab, scientists often use the process of crystallization to purify a specific compound. Crystals are often formed in nature, under similar circumstances. Crystallization occurs when a starting material, usually a powder...
Examples of mixtures found around the house
By: Ernest Capraro
Mixtures are all around us. Remember, a mixture is anything other than a pure substance, and very few things are entirely pure substances. Walking around the house and yard, a myriad of example are instantly available. For the sake of a little organization, these examples...
What led to John Dalton's atomic theory?
By: Minute Major
Modern chemistry recognizes many compounds and mixtures that result from the bonding of atoms. This basic idea is the heart around which all chemistry is structured. However, it wasn’t until the late 1700’s that these important building blocks of chemistry were discovered. Antoine...
By: Minute Major
When one thinks of precious metals, Gold is often first to come to mind. The craze for gold was responsible for the California gold rush of 1848 in which approximately 300,000 people traveled to California to fill their pockets with the valuable metal. Often...
By: Allan Taylor
Crystals, or minerals are everywhere around us. How did they come into existence? How did it happen? How fast do they grow?Are crystals like plants? Many plants you can grow from seed, like corn, and watch them mature until harvest time. Some plants, like...
Chemistry science fair projects: Testing materials for UV blocking
By: Ernest Capraro
Ultraviolet (UV) light is invisible to the human eye, but gets a lot of attention. After all, UV light can cause sunburns, suntans, or skin cancer. It can fog photographs, make objects fluoresce, or even attract butterflies to flowers (they can see into the UV...
Changes in matter
By: Cyn P.
What is matter? Matter is anything that has mass and occupies space. Generally, matter is classified into 3 different states: solid, liquid, gas. A substance can be changed from one state to another by the process of heating or cooling. The kinetic theory model explains...
How and why chemical changes occur
By: Ernest Capraro
Chemical changes are those changes that result from a chemical reaction. A chemical reaction involves the breaking and/or formation of a chemical bond. Anytime chemical bonds change, the new chemicals that are produced have their own unique set of properties. The change from old to...
Beginner's guide to chemistry
By: Enigmatic
Chemistry can be a daunting subject for a lot of students. Since it's possible for high school students to take chemistry in Grade 11 (in Canada at least), this guide will go over what you need to know. Firstly, there's the two different, basic types...
Explaining chemistry to kids
By: Ernest Capraro
Chemistry is fascinating to all ages, children included. Sometimes the temptation is to think that chemistry is too complex for kids to understand. Granted, you probably shouldn’t try to have them calculate second-order rate laws right off the bat, but basic concepts like atoms...

 

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